Siemens SENTRON PAC RS485 - Assembling and Installation Procedures; Installation and Commissioning Steps

PAC RS485
Manual, 02/2008, A5E02091800B-01
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Assembling
4
4.1 Procedure for installation and commissioning
The following system configuration information must be available:
● Installation location of the device
● Baud rate
● Planned address of the PAC RS485 expansion module
Procedure
1. Mount the SENTRON PAC Power Monitoring Device and the PAC RS485 expansion
module.
2. Connect the SENTRON PAC Power Monitoring Device.
3. Connect the PAC RS485 expansion module to the RS 485 network.
4. Switch on the terminating resistor at the start and the end of the bus.
5. Apply supply voltage to the SENTRON PAC Power Monitoring Device. The
SENTRON PAC Power Monitoring Device and expansion module are then ready for
operation.
6. Set the language on the SENTRON PAC Power Monitoring Device.
7. Parameterize the SENTRON PAC Power Monitoring Device.
8. Set the following on the SENTRON PAC Power Monitoring Device.
– The planned RS 485 address, e.g. the MODBUS address
– The baud rate
– The communication settings
– The protocol, e.g. MODBUS RTU or SEAbus
– The response time
9. Make the necessary settings on the master.
10. Check all connections and settings.