Delta AS Series Operation Manual page 460

Addresses
Device
B.2 Function Codes and Number of Devices Supported
for Modbus Protocols
Applicable to AS300 and AS200 series PLC
Function
Name
code
01 Read Coil Status
Read Discrete Input
02
Status
03 Read Holding Registers
04 Read Input Registers
05 Force Single Coil
06 Preset Single Register
0F Force Multiple Coils
10 Preset Multiple Register
Read/Write Multiple
17
Register
Description
X, Y, M, SM, S, T, C, HC 1~256 bits
X, Y, M, SM, S, T, C, HC 1~256 bits
1~100 words,
X, Y, SR, D, T, C, HC, E
(1~50 for HC)
X 1~100 words
Y, M, SM, S, T, C, HC 1 bit
Y, SR, D, T, C, HC, E 1 word
Y, M, SM, S, T, C, HC 1~256 bits
1~100 words,
Y, SR, D, T, C, HC, E
(1~50 for HC)
1~100 words,
Y, SR, D, T, C, HC, E
(1~50 for HC)
Number of devices Number of devices
supported
(FW V1.06.00 or (FW V1.06.10 or
later)
1~1600 bits
1~1600 bits
1~100 words,
(1~50 for HC)
1~100 words
1 bit
1 word
1~1600 bits
1~100 words,
(1~50 for HC)
1~100 words,
(1~50 for HC)
0
supported
later)
B - 3