2 digital communications parameters, Digital communications parameters – Super Systems 3L Series User Manual

Page 40

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Operations Manual

Series 3L

40

11.2 Digital Communications Parameters

The following table shows the parameters available.

DIGITAL COMMUNICATIONS LIST ‘comms’

Name

Scrolling
Display

Parameter
Description

Value

Default

Access
Level

I D

MODULE
IDENTITY

Comms identity

none No module fitted

As order
code

Conf

L3 R/O

r232 EIA 232 Modbus interface
r485 EIA 485 Modbus interface

A D D R

ADDRESS

Communications
address of the
instrument

1 to 254

1

L3

B A U D

BAUD RATE

Communications
baud rate

1200 1200

9600

Conf

L3 R/O

2400 2400
4800 4800
9600 9600
19.20 19,200

P R T Y

PARITY

Communications
parity

none No parity

none

Conf

L3 R/O

Even Even parity
Odd

Odd parity

D E L A Y

RX/TX DELAY
TIME

To insert a delay
between Rx and Tx
to ensure that drivers
have sufficient time to
switch over.

Off

No delay

Conf

L3 R/O

On

Fixed delay applied

R E T R N

TRANSMITTED
PARAMETER

Master
communications
broadcast parameter.

See section 11.2.1.

none None

none

PV

Process Variable

R E G . A D

DESTINATION
ADDRESS

Parameter added in
the Slave address to
which the master
communications
value will be written

See section

11.5

.

0 to 9999

0

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