Reference
MVI56E-MNETCR ♦ ControlLogix Platform
User Manual
Modbus TCP/IP Multi-Client Enhanced Communications Module for Remote Chassis
Page 132 of 161
ProSoft Technology, Inc.
Request
Response
Field Name
(Hex)
Field Name
(Hex)
Function
08
Function
08
Sub-function Hi
00
Sub-function Hi
00
Sub-function Lo
00
Sub-function Lo
00
Data Hi
A5
Data Hi
A5
Data Lo
37
Data Lo
27
The data fields in responses to other kinds of queries could contain error counts
or other data requested by the sub-function code.
5.5.9 Force Multiple Coils (Function Code 15)
Query
This message forces each coil in a consecutive block of coils to a desired ON or
OFF state. Any coil that exists within the controller can be forced to either state
(ON or OFF). However, because the controller is actively scanning, unless the
coils are disabled, the controller can also alter the state of the coil. Coils are
numbered from zero (coil 00001 = zero, coil 00002 = one, and so on). The
desired status of each coil is packed in the data field, one bit for each coil (1=
ON, 0= OFF). The use of server address 0 (Broadcast Mode) will force all
attached servers to modify the desired coils.
Summary of Contents for MVI56E-MNETCR
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