20
Unit Components
Section 2-1
Note Always turn OFF the power to the Unit before changing the device address
setting. The Unit only reads the address setting during the initialization follow-
ing a power-up, i.e. any changes after power up will have no effect.
Baud rate setting
In order to select the baud rate used for communication over the RS-422A/
RS-485 network, two DIP-switches are available. Baud rate switches are part
of the DIP-switch bank of 4 switches on the front-case of the Unit. Switch 1
and 2 are used to select the baud rate to be used for communication over the
RS-422A / RS-485 network. The possible combinations are summarized
below.
Note The two DIP-switches for the baud rate are only read during power-up/restart
of the PRT1-SCU11. Changing them during operation has no effect.
Communication Format
Selection
DIP-Switch 3 allows the user to select the communication protocol on the RS-
422A / RS-485 network, to be either Memobus or one of the other protocols.
Note The communication format selection must be set prior to power-up. Changes
made during operation have no effect.
Auxiliary Port Selection
DIP-Switch 4 allows the user to enable or disable the use of the RS-232C
Port, behind the cover next to the DIP-switches.
Note DIP-Switch 4 can be changed during operation. The selected mode is
reflected through the LED Indicators.
DIP-
Switch 1
DIP-
Switch 2
Baud rate
(bits/sec.)
OFF
OFF
9600 (default)
OFF
ON
19200
ON
OFF
38400
ON
ON
Reserved for future use
PRT1-SCU11
ON
RUN
ERR
COMM
BF
FCOM
x
10
x
1
0
2
3
4
5
6
7
8
9
1
0
2
3
4
5
1
1
2
3
4
DIP switches
DIP-
Switch 3
Description
OFF
Communication protocol on RS-422A / RS-485 is
• Compoway-F
• Host Link
• K-Format
Note
Selection of the protocol is made through I/O module selection in
the PROFIBUS Master configuration.
Note
The communication format used is 7 data bits, 2 stop bits, 1 even
parity bit.
ON
Communication protocol on RS-422A / RS-485 is Memobus.
Note
The communication format used is 8 data bits, 1 stop bit, 1 even
parity bit.
DIP-
Switch 4
Description
OFF
PROFIBUS to Compoway-F and Host Link is active. The RS-232C Auxil-
iary Port is inactive.
Communication from PROFIBUS is rerouted to the RS-485/RS-422A
communication port.
ON
PROFIBUS to Compoway-F and Host Link is inactive. The RS-232C Aux-
iliary Port is active.
Communication from the Auxiliary Port is rerouted to the RS-485/RS-
422A communication port.
Summary of Contents for PROFIBUS DP GATEWAY
Page 1: ...OPERATION MANUAL PROFIBUS DP Gateway to Host Link Compoway F PRT1 SCU11 Cat No W01E EN 02 ...
Page 2: ...PRT1 SCU11 PROFIBUS DP Gateway Operation Manual Revised September 19 2005 ...
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