Schneider Electric SR2MAN01 Modbus Inputs/Outputs, Description, Parameters, to master, Qg Qf

Models: SR2MAN01

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Modbus Inputs/Outputs

LD Language Elements

Modbus Inputs/Outputs

Description

A Modbus SR3 MBU01BD extension module may be added onto an extensible

 

smart relay.

 

In LD mode, the application cannot access the four 16-bit data exchange words.

 

Data transfer between master and slave is implicit and completely transparent.

 

 

 

Note: The Modbus module only operates in Modbus slave mode.

Parameters

 

 

The Modbus module can be configured only from the programming software (see

 

the on-line help of the programming software for more information).

Words to be sent Writing these words to the master is automatically performed by duplication of the

to master

status of the discrete I/Os as follows:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Modbus Address(Hexa)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0x0014

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

IG

IF

IE

ID

IC

IB

IA

I9

I8

I7

I6

I5

I4

I3

I2

I1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0x0015

 

 

0

0

0

0

0

0

0

0

IR

IQ

IP

IN

IL

IK

IJ

IH

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0

0

0

0

0

0

QA

Q9

Q8

Q7

Q6

Q5

Q4

Q3

Q2

Q1

 

0x0016

 

 

 

 

 

 

 

 

 

 

 

 

 

0x0017

 

 

0

0

0

0

0

0

0

0

0

0

QG QF
QE QD QC QB

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Most significant byte

 

 

 

 

 

Least significant byte

 

 

 

Words sent by the master.

I1 to IG: discrete input states for the SR3 B261BD base.

IH to IR: discrete input states for the SR3 XT141BD extension.

Q1 to QA: Discrete output states for the SR3 B261BD base.

QB to QG: Discrete output states for the SR3 XT141BD extension.

The words sent by the master are not processed by the smart relay.

These 4 16-bit words have the following addresses (Hexa): 0x0010 / 0x0011 / 0x0012 / 0x0013.

SR2MAN01 11/2007

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Page 130
Image 130
Schneider Electric SR2MAN01 Modbus Inputs/Outputs, Description, Parameters, to master, Modbus AddressHexa, Qg Qf