ControlMaster CM10, CM15, CM30 and CM50
Universal process controllers and indicators,
1
/
8
,
1
/
4
and
1
/
2
DIN
4 Communication Level
10
IM/CM/C–EN
…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
.
