B&B Electronics ZXT9-IO-222R2, Product Manual

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Appendix D: Modbus I/O Assignments
Manual Documentation Number: ZXTx-IO-x-2310m 57
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