Fig. 4-12: Modbus Interface Terminals - Emerson Rosemount Xstream Series Instruction Manual

Instruction Manual
HASAxE-IM-HS
07/2006
4-4-1 Installation - X-STREAM GP, X-STREAM GPS
Modbus interface
Specification and driving the interface:
Chapter 9
To connect the terminals remove the cover at
the analyzer's rear panel (4 screws). Feed the
serial signal cable through the 3
protection, and through the 3
Emerson Process Management GmbH & Co. OHG
rd
edge
rd
strain-relief.
RS 232 RS 485/2w RS 485/4w
Common Common
RXD
not used
TXD
not used
not used
Common

Fig. 4-12: Modbus Interface Terminals

The lower 5 terminals (# 11 - 15) of the terminals
row next to the power terminals are reserved
for the Modbus interface (left side of figure
shows a combined cable carrying RS and relay
contact signals).
Note 1!
Take care of the special installation
instructions in section 4-5!
Common
RXD0
RXD1
D1 TXD1
D0 TXD0
Note 2!
X-STREAM analyzers are to be considered
a DTE (Data Terminal Equipment).
X-STREAM
4-15