Connecting
6.7 Connection of the analog output (1 x AQ)
SIWAREX WT241
38 Manual, 05/2015, A5E36046748A
6.7 Connection of the analog output (1 x AQ)
Unknown assignment of the analog outputs
The assignment of the analog output is not known at the time of connection. The analog
output can be active immediately after turning on the power supply. This may damage parts
of the system.
Do not create a connection with the analog output before you know the assignment.
The analog output is not permanently assigned to a process value in the delivery state. The
analog output is connected through to the terminal board (see 6.3.2 “Connection of any
scales or load cells”; pg. 32 ; connection area ②)
Assignment of the analog output to the process value as well as its response in the event of
a fault is carried out during commissioning in Menu 1.5.2 Analogue Output.
Table 6- 5 Connection of analog output
6.8 Connection of RS485 serial interface
The following devices can be connected to the serial interface:
● Operator Panels or other HMI devices with RS485 and Modbus protocol RTU
● Communication partner with Modbus protocol RTU
RS485 connection is established directly at the weighing module SIWAREX WP241 inside
the terminal.
Table 6- 6 Connection of RS485 serial interface
RS485 data line +‘ for looping through of bus signal
RS485 data line -‘ for looping through of bus signal
RS485 data line + for feeding in of bus signal
RS485 data line - for feeding in of bus signal
If a SIWAREX WP241 module forms the termination of an RS485 network, insert wire
jumpers between the D+‘ and T+ terminals and between the D-‘ and T- terminals for
termination of the bus network
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