Specifications

D1.2.2 The PCS maxi driver variables

COM_TIMEOUT: PCS time-out time

The time-out time determines the maximum admissible time for the processing of

the job package in the programmable controller. The default is 2000ms. Admissible

values for the variable are 1000ms to 9999ms (= 1 to 9.9 sec.).

COM_DAT_PL: Start address of the I/ O buffer in the PLC

Determines the first used flag word in the programmable controller for the data

interchange area. Thereby, the variable has an offset function. The possible values

for flag words are 1 to 15000. The default setting is 1256. Therefore, flag word

1256.

COM_MAXLEN: Maximum number of the packages per communication cycle.

In a communication cycle, the PCS forms sub-packages for each task. The number

of these sub-packages can be limited. This results in reducing the time for a

communication cycle. This can be advantageous for fast jog operations (as far as

possible without variable display). On the other hand, the refreshing of variables

thereby takes longer. Limit this variable only if all other measures have not resulted

in sufficient time savings. The possible values are between 1 and 32. Default value

is 32.

Set the rotary switch at the rearside of the PCS to an arbitrary position 0..3.

The only baud rate is 19200 baud.

D.1.3 Connection of the PCS to the PLC

Warning!

Check the PCS function and also after parameterization and/or driver

installation. All parameterized functions must be examined. Otherwise

malfunctioning of the PCS and/or programmable controller are possible.

1. After you have configured the PCS, set the DIL-switches 8 and 9 at the rearside

of the PCS to OFF.

2. Supply operating voltage (19..33V) to the PCS. At least the ERR LED must light

now.

3. Load the AEG250PX expander block into the programmable controller.

4. Connect the programming interface of the programmable controller to the PCS

using the PCS 778 adapter cable.

5. Switch the programmable controller to RUN. If the A 2.1 ERROR output lights,

then the E2.1 restart input must be set.

6. Now, the ERR LED at the PCS must be deactivated. Idle text 0 appears on the

PCS display. If this should not be the case, then continue reading under section

D1.5.

First commissioning