GP-IB ADAPTER GP-600B INSTRUCTION MANUAL © PRINTED IN JAPAN B65-0002-20(N)
CONTENTS USING THE PRODUCT SAFELY ................................................Ⅰ-Ⅳ 1. GENERAL..............................................................................................1 2. SPECIFICATIONS .................................................................................2 3. INSTRUCTIONS ON USE......................................................................4 4. SYSTEM CONFIGURATION .................................................................8 4-1. Principle of Operation .....
USING THE PRODUCT SAFELY ■ Preface To use the product safely, read this manual to the end. Before using this product, understand how to correctly use it. If you read this manual but you do not understand how to use it, call the company that is indicated on the back cover of this manual. After you read this manual, keep it so that you can read it anytime as required. ■ Notes on reading this manual The contents of this manual include technical terms in part of their explanation.
USING THE PRODUCT SAFELY WARNING ■ Do not remove covers and panels from the product. Never remove the product's covers and panels for any purpose. Otherwise, electric shock to the users or a fire may be incurred. ■ Warning on using the product The warning items given below are to avoid danger to the user’s body and life and avoid the damage and deterioration of the product. Use the product, observing the following warning and caution items.
USING THE PRODUCT SAFELY WARNING ■ Warning item on grounding The product has the GND terminal on the panel surface to protect the user from electric shock and protect the product. Be sure to ground the product to safely use it. ■ Warning item on installation environment ●Operating temperature Use the product within the operating temperature indicated in the rating column. If the product is used with the vents of the product blocked or in high ambient temperatures, a fire may occur.
USING THE PRODUCT SAFELY CAUTION ■ Input/output terminal Maximum input to the input terminals is specified to prevent the product from being damaged. Do not supply input, exceeding the specifications that are indicated in the "Rating" or "Caution on use" column in this manual of the product. Otherwise, a product failure is caused. Also, do not supply power to the output terminals from the outside. Otherwise, a product failure is caused.
1. GENERAL The GP-600B adapter is designed to set the constant voltage and constant current and control the OUTPUT switches and power relays of the regulated DC power supply units, PS, PA-B, PD-A and PT series from a computer through the GP-IB bus (in conformity to the IEEE-488-1978). - The GP-600B has an interface function in conformity to the IEEE-488-1978. The GP-600B also has an SRQ function to detect errors in the power supply units for safety system control.
2. SPECIFICATIONS 【GP-IB】 Electrical specifications: In conformity to the IEEE-488-1978. Mechanical specifications: In conformity to the IEEE-488-1978. Interface functions : SH1,AH1,T6,L3,SR1,RL2,PP0,DC1,DT0,C0 Address setting : Set addresses 0 to 30 optionally with the address switches. Listen-only mode : Set with the L-ONLY switch. Delimiter : Set with the EOI/CR.LF switch. Output Off function : Turn off output with the OUTPUT OFF key.
【Digital I/O】 Control signals OUTPUT ON/OFF POWER relay ON/OFF Status signals CV operation (SRQ) CC operation (SRQ) Alarm ON(SRQ) Power ON/OFF OVP ON(SRQ) TTL level TTL level TTL level TTL level TTL level 【Operation Conditions】 Guaranteed operating temp. range Guaranteed humid.
3. INSTRUCTIONS ON USE ●Checking the power source -Use the GP-600B on the source voltage rating. ●Replacing the fuse, and changing the source voltage rating -Contact our distributor if it is necessary to replace the fuse or change the source voltage rating. ●Ambient temperature and installation site -Do not use the GP-600B in a place whose temperature and/or humidity exceeds the rating. -Do not use the GP-600B in a place with much dust or vibrations.
●Precautions for connecting the GND cable and shorting bar -Be sure to connect the GND cable and shorting bar of the power supply unit as shown below when the GP-600B is combined with floating circuit type power supply units. PS series power supply unit Rear panel of the PS series GND cable GND GND × ＋ × ＋ － － Be sure to disconnect the GND cable when it is not used. Connect the GND cable between the + and GND terminals, or disconnect the GND cable as shown on the right.
PA-B series Precautions for connecting the GND cable and shorting bar Shorting bar － GND ＋ － GND ＋ Disconnect the shorting bar. Connect the shorting bar between the - and GND terminals, or disconnect the GND cable as shown on the right. PD-A series Precautions for connecting the GND cable and shorting bar ＋ ＋ － － Shorting bar Connect the shorting bar between the + and GND terminals, or disconnect the GND cable as shown on the right. Disconnect the shorting bar.
●System interface -Be sure to use control software applicable to the service requests when the GP-600B is used with the service requests enabled. -Give listen-only specification from the controller when the GP-600B is used in the listen-only mode. ●Output ripple noises -When the GP-600B is connected with the regulated DC power supply units, the DC power supply units may output more ripple noises than those in individual operation.
4. SYSTEM CONFIGURATION 4-1. Principle of Operation Digital signals through the GP-IB connector are supplied to the GP-IB interface IC through the bus transceiver. The handshaking timing of this GP-IB interface conforms to the IEEE-488-1978. Codes received by the GP-IB interface are decoded by the CPU then. The CPU converts the data into binary data and outputs to the D/A converters through serial output ports. Those data pass through photo-isolators and are isolated.
4-2. System Configuration Check the specifications of the GP-600B and power supply units to configure the most appropriate system. 1) I/O specifications of the GP-600B 1 2 CH1 and CH2 connectors on the rear panel 19 20 Pin No.
2) Connectable series The GP-600B may control the following series. PS series, PA-B series, PD-A series, and PT series 4-3.
5. FRONT AND REAR PANELS １ LISTEN ３ ５ GP- IB ２ REM OTE CH1 CH2 ２２ ４ ２０ ２３ ６ ７ １０ １３ １６ ８ １１ １４ １７ ９ SERIAL ON（1） １２ OFF（0） E0I / CR.LF １５ L.
① ADDRESS Normally, the address set with the address switches on the rear panel is displayed here. No data is displayed in the listen-only mode. ② SRQ This LED indicates the service request status. It is lit while an SRQ resides on the GP-IB bus. ③ TALK This LED indicates the talk status. It is lit when the talker status is specified on the GP-IB bus. ④ LISTEN This LED indicates the listen status. Normally, it is lit when the listener status is specified on the GP-IB bus.
⑩ CH1 B 0V This semi-fixed (one-turn) resistor is used to adjust the output offset of channel 1, B. ⑪ CH1 B FS COARSE This semi-fixed (four-turn) resistor is used to adjust the output voltage of channel 1, B coarsely. ⑫ CH1 B FS FINE This semi-fixed (one-turn) resistor is used to adjust the output voltage of channel 1, B finely. ⑬ CH2 C 0V This semi-fixed (one-turn) resistor is used to adjust the output offset of channel 2, C.
⑳ GP-IB connector This is a 24-pin Amphenol connector in conformity to the GP-IB Standards (IEEE-488-1978). Connect the GP-IB bus cable to this connector. 21 Address switches ○ Use these switches to set the address of the GP600B on the GP-IB bus, listen-only mode, and send delimiter. (See page 15.) 22 CH1 connector ○ Connect a cable between this connector and a power supply unit to be controlled. Analog outputs A and B and digital control signals of channel 1 are input and output through this connector.
6. OPERATION PROCEDURES 6-1. Setting and Connection 1) Connecting the GP-IB bus cable -Connect the GP-IB bus cable between the GP-IB connector receptacle of the GP-600B and the controller. NOTE: Never plug or unplug the connector while the GP-600B is electrified. Disobedience to this instruction may result in malfunctioning or troubles. Fix the GP-IB bus cable to the GP-IB connector receptacle of the GP-600B firmly with the screws.
-Set the address in binary with the address switches (1 to 5). It may be freely set in the range from 0 to 30. It is prohibited to set all switches to ON (i.e., address 31). Do not attempt such setting. -Set the L.ONLY switch to ON to set the listen-only mode. -Set the EOI/CR.LF switch to ON to select the "CR.LF + EOI" delimiter. Set the switch to OFF to select the "CR.LF" delimiter. NOTE: Setting of the address switches is read in when the GP-600B is turned on.
6-2. Connection with Power Supply Unit to be Controlled 6-2-1 Connection with the PS series Rear panel of GP-600B CH1 Rear panel of CH2 PS series S1 CH2 20-pin flat cable Rear panel of CH1 PS series S1 20-pin flat cable -Use the OP-18-PS to connect the PS series with the GP-600B. -Setting of the DIP switch cluster S1 Set the DIP switches of the PS power supply units as shown below when connecting them with the GP-600B.
6-2-2 Connection with PA-B series Rear panel of GP-600B CH1 Rear panel of PA-B series CH2 20 pin GP-600B connector Nos. 1 2 7 8 9 10 13 14 11 12 -Connect Brown V.V+ Black V.VV.R1 V.R2 Red I.V+ Orange I.VI.R1 I.R2 Yellow OUTPUT 1 Green OUTPUT 2 Blue Purple CV White CC Gray ALARM COMMON I.MON+ I.MONV.MON+ V.MON- J2 CH2 in the same manner. -Carry out wiring as shown above using the connectors supplied with the GP-600B, or use the OP-18-PAB to connect with the GP-600B. -Set the Vext. V, lext.
6-2-3 Connection with PD-A series Rear panel of GP-600B CH1 Rear panel of PD-A series CH2 12 orange 11 10 red 9 Constant Current setting 8 7 6 black brown 8 7 2 1 19 １2 １5 １7 13 20 １4 5 4 3 orange red black brown Disconnect the Shorting bars Constant Voltage setting 2 1 １ ２ ３ ４ ５ ６ 7 EXT I/F (option) GP-600B connector Nos. Connect with DIN connector On the PD-A series rear panel - Connect CH2 in the same manner.
6-2-4 Connection with the PT series Rear panel of GP-600B CH1 CH2 Rear panel of CH2 PT series 20 pin cable S1 Rear panel of CH1 PT series S1 20 pin cable Use the OP-18-PT to connect the PT series with the GP-600B. Connect the 20-pin connector with the GP-600B and 26-pin connector with the PT series.
6-3. GP-IB 1) Interface The general-purpose interface bus GP-IB is an internationally standardized interface bus for measuring instruments. It is a byte-serial, bit-parallel interface bus specified in the interface standards.
Flow chart Source Hi: High level Lo: Low level Start Start DAV is set to Hi. ① ③ Are both NRFD and NDAC Hi? ② NRFD and NDAC are set to Lo. YES NO NO Error display ③ ⑪ Ready to receive data? YES New signal to DIO ⑤ ⑭ ⑮ End ④ ⑫ NRFD is set to Hi. Delay until stabilizing NO NRFD goes Hi only when all acceptors are ready. Is NRFD Hi? NO YES ⑥ ⑯ NO YES Data go valid. Ready to receive them. DAV is set to Lo. ⑦ ⑰ NRFD is set to Lo. Is NDAC Hi? Receives DIO signal.
2) Command format A command consists of an alphabetic command operand, which shows the contents, and an alphabetic or numeric parameter, which follows the command operand. The command operand and parameter must be separated with one or more spaces. A space in the command operand or parameter causes a command or parameter error. Example: Mode setting PA18-2B MODE _ 18,2 Parameter Space Command It is possible to write several commands on a single line if they are separated with separators ":" or ";".
It is possible to select CR.LF or CR.LF + EOI as the send delimiter with the address switches on the rear panel. Control Command List Command name (Parameter) Default value Type Function name Common command C Resets the value to the default. *RST --- Common command C Clears the status byte. *CLS --- Q Reads the equipment ID. *IDN? --- Sets a channel. Sets a voltage/current mode. Sets the voltage. Sets the current. Output control Power relay control Sets SRQ masking.
3) Common commands Command: *RST Function: Resets the followings to the default values. Clear the communication buffer. Clear each command parameter. Clear the status byte. However, the REN status is unchanged to ensure the command operation. (The REN and LISTEN LEDs go on.) Command: *CLS Function: Clear the status byte. Command: *IDN? Function: Read the device ID.
4) Data setting commands (Listener operation) 1. Channel setting Command: SELECT X1 Function: Specify a channel whose power supply unit model, voltage and power mode, output voltage, output current, output, and power relay are to be set. When the GP-600B is turned on first, no channel has been set yet. Thus, the MODE, VOLT, AMP, OUT or POWER command causes a GP-IB run error if it is executed without setting a channel. Once a channel is specified, it is stored. Parameter: X1: 0: Select both channels 1 and 2.
3. Voltage setting Command: VOLT X1 Function: Function: Set the output voltage of the power supply unit in the selected channel. This command is available only when the rated voltage and rated current of the selected channel are set with the MODE command. Otherwise, this command causes a GP-IB run error. If the output voltage is greater than the rated voltage, a parameter error occurs. The output voltage is set to zero when the GP-600B is turned on.
5. Output control Command: OUT X1 Function: Turn on or off the output of the selected channel (power supply unit). The output is off when the GP-600B is turned on. Parameter: X1 : 0－Turns off output 1－Turns on output 6. Power relay control Command: POWER X1 Function: Turn on or off the power relay of the selected channel (power supply unit). The power relay is off when the GP-600B is turned on. Parameter: X1: 0－Turn off the power relay. 1－Turn on the power relay.
7. SRQ masking Command: MASK X1 Function: Mask SRQ factors produced by the controlled power supply units. All are enabled when the GP-600B is turned on. Parameter: X1: ＊＊＊＊＊＊＊＊＊＊ Power switch of power supply is turned off Power supply channel 2 outputs An alarm signal Power supply channel 2 enters the OVP status.
8. Output Off channel setting Command: OFFCH X1 Function: Specify channel(s) to which the GP-600B turns off output (i.e., it resets the output voltage and current to zero and turns off output) in the case where an OVP, alarm, or power switch Off condition occurs in the power supply units. It is set to 1 when the GP-600B is turned on. Parameter: X1: 0- Do not turn off output. 1- Turn off output of only the channel where an OVP, alarm, or power switch Off condition occurs.
11. Maximum value setting of reference C Command: MODEC X1 Function: If the maximum value of the reference C is set with this command, the reference output may be only changed with the SETC command. The reference output is reset to zero if this command is sent while the reference is being output. Parameter: X1: Maximum output (0.01 to 9999.99) The format of the numeral is XXXX.XX. 12.
14. Output setting of reference B Command: SETB X1 Function: Set the output of the reference B. This command is available only when the maximum value of the reference B is set with the MODEB command. In other condition, this command causes a GP-IB run error. The reference output is set to zero when the GP-600B is turned on. Parameter: X1: Output value (0 to maximum set value of the reference B) The format of the numeral is XXXX.XX. 15.
If the parameter of the AMP, VOLT, OUT, SETA, SETB, SETD command is omitted, the parameter is automatically value used previously. This function allows the previous be restored even when the OUTPUT OFF key is pressed output is turned off.
18. Listen-only mode setting Command: LISTEN X1 Function: Bring the GP-600B into the listen-only mode while it is not in the listen-only mode, and changes the listen-only mode into the normal mode. In the listen-only mode, the GP-600B cannot issue service requests or send data, and accordingly the controller cannot check the conditions of the power supply units. Please note this.
5) Data request commands 1. Inquiry about CC, CV, OVP, alarm and power switch status Command: STATUS? Function: Inquire about the CC, CV, OVP, alarm and power switch status.
2. Inquiry about set value of data setting command The data setting commands 1 to 18 shown above also serve as set value inquiry commands if question marks "?" are added to the end of the commands. (The output may be in the off status actually, depending on pressing the OUTPUT OFF key or an error in the power supply unit.) The format of the response is the same as that of the setting command and parameter. However, the command (with no parameter) is only returned if the parameter is not set in that command.
6) Service requests A service request is issued when either of the following conditions takes place in a mode other than the listen-only mode. However, the service requests in CV or CC operation after output is turned on are not issued for the period specified with the MTIME command. 1: OVP, alarm or power switch Off status takes place in the power supply unit. 2: The CH1 power supply unit enters the CV operation state. (May be ignored if the CV state is shorter than 100 ms.
Status Byte 1 to 5: 40H to 5FH(010XXXXXB) Set to 1 when CH1 enters the CV mode Set to 1 when CH2 enters the CV mode Set to 1 when CH1 enters the CC mode Set to 1 when CH2 enters the CC mode Set to 1 when OVP,alarm or power switch Off state takes place 6: 61H (01100001B) 7: 62H (01100010B) 8: 68H (01101000B) 9: 78H (01111000B) It is possible to check the operation status using the STATUS? command in the condition of 1.
6-4. Simple USB (Virtual COM Port) With a built-in USB - serial converter (FT232BM made by FTDI England), the GP-600B may utilize existing RS232C communication software using the USB port of the PC as a virtual COM port. It is necessary to install the device driver in the PC for using the RS232C communication software. Download the virtual port driver for the FT232BM (VPC Driver) from the FTDI homepage (http://www.ftdichip.com/) according to the PC in use, store it in an appropriate folder, and unfreeze it.
6-5. Total System Adjustment Adjustment For controlling the power supply units using the GP-600B, preliminary adjustment is needed to obtain necessary accuracy. - Aging Before starting adjustment, connect the GP-600B with the power supply units to be controlled for aging, which should be done for 30 minutes or more.
- Full scale (FS) adjustment Output of power supply GP-IB input Set the FS output voltage (current) of the power supply units to be controlled through the GP-IB bus, and adjust the FS values with the semi-fixed variable resistors on the GP-600B panel. The FS variable resistor of each output has COARSE and FINE controls. Use the variable resistors 8 and 9 on the panel to adjust the FS voltage of CH1 A. Use the variable resistors 11 and 12 on the panel to adjust the FS voltage of CH1 B.
7. OUTSIDE DIMENSIONS 124 134 LISTEN 10 70 5.3 350 363.
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