Communication Systems; Communication Ports; Modbus - Siemens MAG 1100 Operating Instructions Manual

Communication Systems

The MultiRanger is capable of communicating with most SCADA systems, PLCs, and PCs.
The supported protocols are:
• Modbus RTU/ASCII – base unit on RS-232 or RS-485 transport
• PROFIBUS DP – optional SmartLinx
• Allen-Bradley®
• DeviceNet® – optional SmartLinx module

Communication Ports

The MultiRanger comes with two communication ports on the base unit.
Port Connection
1 RJ-11 connector
2 terminal block
RS-232
The RJ-11 jack connects to a laptop computer for the following:
• initial setup
• configuration
• troubleshooting
• periodic maintenance
RS-485
The RS-485 port on the terminal blocks connects into industrial communications wiring
and has the following advantages:
• runs communications cable farther
• allows multiple slave units on the network, addressed by P771 – Network Address
To communicate with equipment requiring RS-485 capability, Siemens Milltronics offers
the RS-485 External Modem Kit. For more information, go to
www.siemens.com/processautomation.

Modbus

The Modbus protocol is supported in the base unit and can be configured using the
Communications parameters P770 to P782.
To set up communications with a Modbus RTU master device on port 2 using RS-485, set
the following parameters:
1.
Allen-Bradley is a registered trademark of Rockwell Automation.
DeviceNet is a registered trademark of Open DeviceNet Vendor Association.
Page 90 MultiRanger 100/200 – INSTRUCTION MANUAL
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1
Remote I/O – optional SmartLinx module
Location
inside enclosure on main board
terminal block
module
Interface
RS-232
RS-485
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