SENTRON PAC4200 - Communications interface of the PAC RS485 expansion module

Technical data
11.5 Communications interface of the PAC RS485 expansion module
SENTRON PAC4200
186 System Manual, 09/2009, A5E02316180B-02
Ambient and environmental conditions
Table 11- 4 Ambient and environmental conditions
Ambient and environmental conditions Values
Degree of protection IP20
Permissible degree of pollution 2 in accordance with
IEC 61010-1:2001
Recycling symbol > PC / ABC <
Note
Other technical data
The other mechanical and electrical data and ambient and environmental conditions are
identical to those for the SENTRON PAC Power Monitoring Device. You can find more
information in the operating instructions and manual for the SENTRON PAC Power
Monitoring Device.
11.5 Communications interface of the PAC RS485 expansion module
Technical data
Table 11- 5 Technical data for the communication interface
Values
Electrical interface RS 485, twisted-pair cable + 1 cable for Common
Connection type Terminal block with screw terminals
RS 485 data transfer:
supported baud rates in bps
4800 /9600 / 19200 / 38400 / 57600 / 115200
Standard: 19200
The following is supported in conjunction with the
SENTRON PAC3200:
max. 38,400 bps
Supported address range 1 to 247
1)
Supported communication protocols
2)
• MODBUS RTU
• SEAbus
Bus cycle The bus cycle depends on:
1. The number of nodes
2. The data volume
3. The baud rate
Supported modes
• Unicast
• Broadcast
Stations Max. 32 including master