User Manual

Publication 1747-UM005B-EN-P - March 2006

3-8 Communicate with the Interface Module

The group number is used by the interface module to create a

half-duplex DF1 address for each node on the DH-485 network. The

DF1 addresses are the octal equivalent of an eight bit binary word

with the three most significant bits corresponding to the group

number and the five least significant bits corresponding to the local

network address.

Addresses

The following table lists the devices from the above network along

with their DH-485 local network address and their DF1 multi-drop

address.

Devices and Corresponding Addresses

011 11101

111 101

Group Number

(3 in this example)

DH-485 Local Network Address

(29 in this example)

and

combine to make

this binary word

which has this octal value.

(DF1 Multi-drop Address)

Group Device DH-485 Address

(decimal)

DF1 Address

(binary)

DF1 Address

(octal equivalent)

00 1747–KE 01 00|000|001 001

SLC 500 02 00|000|010 002

SLC 500 05 00|000|101 005

SLC 500 09 00|001|001 011

01 1747–KE 00 00|100|000 040

SLC 500 04 00|100|100 044

SLC 500 03 00|100|011 043

1747–KE 01 01|000|001 101

02 SLC 500 00 01|000|000 100

SLC 500 25 01|011|001 131

SLC 500 16 01|010|000 120

SLC 500 04 01|000|100 104