Omron MX2 Series - Page 461

8 Communications Functions
8 - 17
Multi-function Compact Inverter 3G3MX2-EV2 User’s Manual (I666-E1)
⚫ Response
No.
Field name
Example
[hex]
1
Slave address
*1
01
2
Function code
0F
3
Coil start address (MSB)
*2
00
4
Coil start address (LSB)
*2
06
5
Number of coils (MSB)
00
6
Number of coils (LSB)
07
7
CRC-16 (MSB)
F4
8
CRC-16 (LSB)
08
*1. During a broadcast, no response will be sent back.
*2. Note that the coil start address is 0006, which is 1 less than the coil number 0007: Coil start address = Coil
number - 1.
*3. Since written data occupies both MSB and LSB as a set, make the data to have an even number of bytes by
adding one byte of padding data, even if you actually need to change an odd number of bytes.
A multi-function input terminal is recognized as ON when either the terminal block input or the commu-
nications setting turns ON.
Also note that the Multi-function Input Monitor (d005) monitors the terminal block input only.
If the Write to Multiple Coils function is not executed normally, refer to 8-5-9 Exception Response on
page 8-20.
(Example) When the status of coils from coil number 0001 to 000D hex is written, the order of data is
as shown below. Data 1 is the initial byte data to send.
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
Data 1
0008 hex
0007 hex
0006 hex
0005 hex
0004 hex
0003 hex
0002 hex
0001 hex
Data 2
−
−
−
000D hex
000C hex
000B hex
000A hex
0009 hex
8
8-5 Explanation of Each Function Code
8-5-6 Write to Multiple Coils [0F hex]