Preset Multiple Registers (Function Code 16) - ProSoft Technology ControlLogix inRAx MVI56E-MNETR User Manual

Reference
User Manual

5.5.10 Preset Multiple Registers (Function Code 16)

Query
Holding registers existing within the controller can have their contents changed
by this message (a maximum of 60 registers). However, because the controller is
actively scanning, it also can alter the content of any holding register at any time.
The values are provided in binary up to the maximum capacity of the controller
(16-bit for the 184/384 and 584); unused high order bits must be set to zero.
Note: Function codes 5, 6, 15, and 16 are the only messages that will be recognized as valid for
broadcast.
Adr Func Hi
Add
11 10 00
Response
The normal response to a function 16 query is to echo the address, function
code, starting address and number of registers to be loaded.
Adr Func
11 10
Page 142 of 175
Lo Add Quantity Byte
Cnt
87 00 02 04
Hi Addr Lo Addr
00 87
MVI56E-MNETR ♦ ControlLogix Platform
Modbus TCP/IP Interface Module with Reduced Data Block
Hi Lo Hi
Data Data Data
00 0A 01
Quantity
00 02
Lo Data Error Check
Field
02 CRC
Error Check Field
56
ProSoft Technology, Inc.
June 14, 2011