User Documentation
108
Devices – Energy Meter D370
2008050000/03/02-2018
INFOBEREICH
Die Angabe „MatNr/Version/Datum“ bzw. „1234560000/00/MM.YY“ ist als Textvariable deniert
und kann nur auf der „Rueckseite“ editiert werden. Die Textvariable erscheint in allen Doku-
menten dieses Buches, sobald eine Synchronisierung des gesamten Buches(!) durchgeführt
wird. ACHTUNG Die „Rueckseite” muss als Formatquelle(!) ausgewählt sein!
4.1.3.7 Serial interface
An interface converter is required in order to establish a direct connection between the PC (RS232 inter-
face) and the Energy Meter D370 (RS485 interface). The Energy Meter D370 can only function as a Modbus
slave.
As more than one Energy Meter D370 can be connected to an interface converter, each Energy Meter D370
must be set with its own device address.
Note that the device address 0 is reserved for servicing. Two rotary switches on the device are used to set
the device address.
• RS485 in the Modus Modbus slave
• Baud rate selection from 9600 bps, 19200 bps, 38400 bps, 115200 bps and auto detect.
• The baud rate is the speed at which the data is to be transmitted between the PC, the interface converter
and the Energy Analyser D550. The Energy Meter D370 is set in the factory to the automatic baud rate
recognition feature, “auto detect”.
• IfaxedbaudrateisselectedintheEnergyMeterD370,itmustalsobeprogrammedintheremotesta-
tion (PC, Energy Analyser D550). The auto detect setting in the Energy Meter D370 attempts to establish
the baud rate in the remote station with a maximum of 8 attempts.
4.1.3.8 Naming of the inputs
• Enables naming of inputs and outputs.
• The respective inputs/appoints can be assigned names by entering a name in the corresponding box.
4.1.3.9 Setting device address
• Two rotary switches on the device are used to set the device address from 1 to 99.
• When using more than one Energy Meter D370, for example with an interface converter, each device
must be set with its own address.
4.1.4 Modbus functions
Modbus functions supported by Energy Meter D370:
• 03 Read Holding Registers
• 04 Read Input Registers
• 06 Preset Single Register
• 16 Preset Multiple Registers