Appendix d: modbus i/o assignments – B&B Electronics ZXT9-IOA-KIT - Manual User Manual
Page 64
Appendix D: Modbus I/O Assignments
58
Manual Documentation Number: ZXTx-IO-x-4113m
A
A
p
p
p
p
e
e
n
n
d
d
i
i
x
x
D
D
:
:
M
M
o
o
d
d
b
b
u
u
s
s
I
I
/
/
O
O
A
A
s
s
s
s
i
i
g
g
n
n
m
m
e
e
n
n
t
t
s
s
00001-00112 Discrete Digital Outputs
Modbus function codes supported are:
Function 1: Read DO Status
Function 2: Read DI’s
Function 3: Read AO Status
Function 4: Read AI’s
Function 5: Write to Single DO (firmware v2.0 or higher)
Function 6: Write to Single AO
Function 15: Write to Multi DO’s
00001-00002 Discrete Digital Outputs /Relays
Modbus Address
Description
#Bytes
Count
V Range
00001
Digital Output-1
-
0-1
Refer to Appendix B
00002
Digital Output-2
-
0-1
Refer to Appendix B
10001-10002 Discrete Digital Inputs
Modbus Address
Description
#Bytes
Count
V Range
10001
Digital Input-1
-
0-1
Refer to Appendix B
10002
Digital Input-2
-
0-1
Refer to Appendix B
30001-30004 Analog Inputs/ Special Registers
Modbus Address
Description
#Bytes
A/D Count
(V)/(I)Range
30001
Analog Input-1
2
0-65535
0-10vdc/0-20ma
30002
Analog Input-2
2
0-65535
0-10vdc/0-20ma
30003
Input Power Supply (0~30 Vdc)
2
0-65535
0-10vdc/0-20ma
30004
Reserved
2
0-65535
0-10vdc/0-20ma
40001-40008 Analog Output /Counter Registers
Modbus Address
Description
#Bytes
D/A Count
(V)/(I)Range
40001
Analog Output-1
2
0-4095
0-10vdc/0-20ma
40002
Analog Output-2
2
0-4095
0-10vdc/0-20ma
40003
DI1 – Frequency Input
2
0-4095
0-10vdc/0-20ma
40004
DI1 – Counter Low
2
0-4095
0-10vdc/0-20ma
40005
DI1 – Counter High
2
0-4095
0-10vdc/0-20ma
40006
DI2 – Frequency Input
2
0-4095
0-10vdc/0-20ma
40007
DI2 – Counter Low
2
0-4095
0-10vdc/0-20ma
40008
DI2 – Counter High
2
0-4095
0-10vdc/0-20ma