0X0F) Force Multiple Coils (Write Do Values) - ICPDAS ET-2268 CR User Manual

ET-2200 Series Ethernet I/O Modules
6.2.7

15(0x0F) Force Multiple Coils (Write DO values)

This function code is used to set the status of multiple coils or to write multiple Digital Output
values for the ET-2200 series module.
[Request]
Byte Description
00 Net ID (Station Number)
01 Function Code
02-03 Starting DO Address
Number of Output Channels
04-05
(Points)
06 Byte count
07 Output value
[Response]
Byte Description
00 Net ID (Station Number)
01 Function Code
02-03 Starting DO Address
Number of Output Channels
04-05
(Points)
[Error Response]
Byte Description
00 Net ID (Station Number)
01 Function Code
02 Exception Code
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Size
1 Byte 1 to 247
1 Byte 0x0F
Refer to Section
2 Bytes Table" to find the address.
Byte 02 = high byte ; Byte 03 = low byte
2 Bytes Byte 04 = high byte ; Byte 05 = low byte
1 Byte n = (Points +7)/8
A bit corresponds to a channel. A value of 1
for a bit denotes that the channel is ON,
while a value of denotes that the channel is
OFF.
n Bytes
n= 1; Byte 07 = data bit 7 to 0
n= 2; Byte 08 = data bit 15 to 8
.......
n= m; Byte m+6 = data bit (8m-1) to 8 (m-1)
Size
1 Byte 1 to 247
1 Byte 0x0F
2 Bytes
The value is the same as Bytes 02-05 of the
2 Bytes Request
Size
1 Byte 1to 247
1 Byte 0x8F
Refer to the Modbus Standard Specifications
1 Byte
for more details.
Value
6.3 or 6.4 "Modbus Register
Value
Value
-151 -