3 setting the gateway unit and plc master – IAI America RCM-GW-PR User Manual

Page 105

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99

PfofiBus Gateway

7.3 Setting the Gateway Unit and PLC Master


For the Gateway Unit to be able to communicate with the master station, the settings specified below must
be performed.
The following items must be consistent between the master station and the Gateway Unit.

{: ON

X: OFF

Item

Gateway Unit setting

PLC master setting

Baud rate

Set automatically according to

the corresponding setting of

the host PLC master

Baud rate setting

switch

Node

address

Node address setting switch

Node address setting

switch

Assignments

No.

Mode setting switch SW1

Occupied area setting

4 3 2 1

Output
(bytes)

Input

(bytes)

1 X X X X

52

28

Direct numerical specification mode,
4 axes

2 X {

X X

76

40

Direct numerical specification mode,
6 axes

3

{

X X X 100

52

Direct numerical specification mode,
8 axes

4

{

{

X

{

124 64

Direct numerical specification mode,
10 axes

5

{

{

X X 196

100

Direct numerical specification mode,
16 axes *

6 X X {

X 48

48

Position number specification mode,
16 axes

7 X X X {

160

160

Command specification mode, Large

8 X {

X

{

128

128

Command specification mode, Middle

9

{

X X {

64

64

Command specification mode, Small

* When connecting 10 or more axes, the PLC must be the S7-400 or S7-318-2 (Siemens).

(1) Setting the ProfiBus baud rate

[1] Gateway

unit

side

The baud rate need not be set, because it is set automatically according to the corresponding
setting of the host PLC master.

[2] PLC master side

Use the baud rate setting switch on the master unit. (Refer to the PLC operation manual.)

(2) Node address

[1] Gateway

unit

side

Use the node address setting switch. (Refer to 2.3.)
Normally this switch is set to 3 or greater.

[2] PLC master side

Use the node address setting switch. (Refer to the PLC operation manual.)
Normally this switch is set to 2.

(3) Setting the gateway unit mode

Set the operation mode of the gateway unit using the mode setting switch SW1. (Refer to 2.3.)
This setting determines the I/O sizes of the gateway unit. Accordingly register the mode as part of the
slave I/O assignment settings in the master. (Refer to 7.4.)

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