0X01) Read Coils - ICP DAS USA M-7065 User Manual

3.1 01(0x01) Read coils

This function code is used to read the current
digital output readback value.
Request
00 Address
01 Function code
Starting channel
02-03 numbers or address
mapping
Output channel number
04-05
or bit count
M-7065 User's Manual Ver2.0, Dec. /200 8 ---97
1 Byte
1 Byte
DO : 0x0000-0x001F
DI : 0x0020-0x003F
DI/O Latch High :
0x0040-0x005F
DI/O Latch Low :
0x0060-0x007F
Safe Value :
0x0080-0x009F
Power On Value :
2 Byte
0x00A0-0x00BF
Reads WDT Mode :
0x0103
Reads WDT Enable :
0x0104
Reads WDT Status :
0x010D
Reads Protocol : 0x0100
Reads Reset Status :
0x0110
0x0001-0x0020
2 Byte
(Bit count)
1-247
0x01