Description
3.18 Performance features of the PAC RS485 expansion module
SENTRON PAC4200
System Manual, 09/2009, A5E02316180B-02
61
3.18
Performance features of the PAC RS485 expansion module
You can integrate the SENTRON PAC into RS 485 systems with the help of the PAC RS485
expansion module.
Overview
Features include:
●
Communication based on the master-slave principle via the serial interface
●
Function:
–
Modbus RTU slave
–
Serial gateway
–
Modbus gateway (MB gateway)
●
Configuration via:
–
the SENTRON PAC Power Monitoring Device
–
SENTRON powerconfig
●
Unicast messages
●
Broadcast commands with address 0 to the MODBUS slaves
3.19
Performance features of the SENTRON PAC 4DI/2DO expansion
module
You expand the digital inputs and digital outputs with the SENTRON PAC 4DI/2DO
expansion module.
Overview
●
Plug-in expansion module for the SENTRON PAC devices
●
Does not require an external power supply
●
Configuration via:
–
the SENTRON PAC Power Monitoring Device
–
SENTRON powerconfig
●
Connected using screw terminals
●
Four digital inputs with:
–
Functions as on the SENTRON PAC
–
Active input circuit. This enables optional connection without external power supply.
●
Two digital outputs with:
–
Functions as on the SENTRON PAC