ControlMaster CM10, CM15, CM30, CM50, CMF160 and CMF310
Universal process controllers and indicator,
1
/8,
1
/4,
1
/2 DIN and fieldmount 4 Communication Level
10 IM/CM/C–EN Rev. H
…Communication
MODBUS TCP Setup Note. After changing any of the TCP parameters it is advisable to power-cycle the instrument to
ensure changes are applied.
Implementation Select the MODBUS TCP operation mode:
Off – MODBUS TCP disabled
Server – instrument acts as a MODBUS slave
Port Displays the TCP/IP port used by the MODBUS TCP network (fixed at 502).
Connections Select the maximum number of simultaneous TCP/IP connections permitted – minimum 1,
maximum 3.
Client Authority Select the number of authorized TCP/IP connections permitted:
Selected from:
Unrestricted – any MODBUS TCP client device is permitted to poll the instrument
1 (to 3) – Only the MODBUS TCP client device whose IP address is entered in the
authorized Client 1 (to 3) IP parameter (below) is permitted to poll the instrument.
Client 1 (to 3) IP Enter the IP address(es) of the MODBUS TCP Client (MODBUS Master) device(s) permitted to poll
the instrument for data.
Note. Displayed only if the Client Authority parameter (above) is not set to Unrestricted.
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