27
Wiring the RS-422A / RS-485 Devices
Section 2-3
2-3-6
Connection for R88A-MCW151-E Host Link Communications
The R88A-MCW151-E uses Host link communications over 4-wire RS-422A.
The figure below shows the connection between one PRT1-SCU11 and 1 to
15 R88A-MCW151-E units.
Note
1.
If the PRT1-SCU11 is connected on one end of the transmission circuit,
the termination resistor must be enabled on the Unit, by setting Switch 2 to
ON.
2.
The R88A-MCW151-E connected at one end of the transmission circuit,
must also have its termination resistor enabled, by setting Pin 3 of DIP-
switch SW2 to ON.
3.
The R88A-MCW151-E supports baud rates of 9.6, 19.2 and 38.4 kbits/sec.
Ensure that the PRT1-SCU11 baud rate setting (DIP-switch 1 and 2) is set
to the correct setting.
PRT1-SCU11
RS-
422A
Inter-
face
Signal Pin
R-
1
R+
2
FG
3
S-
4
S+
5
R88A-MCW151-E unit
Pin
Signal RS-
422A
Inter-
face
1
RD-
2
RD+
3
FG
4
SD-
5
SD+
R88A-MCW151-E unit
Pin
Signal RS-
422A
Inter-
face
1
RD-
2
RD+
3
FG
4
SD-
5
SD+
RS-422A Port
Connector
Phoenix Connector
RS-422A Port
Connector
Switch SW1: OFF
Switch SW2: ON
DIP switch SW2
Pin 1 OFF
Pin 2 OFF
Pin 3 OFF
DIP switch SW2
Pin 1 OFF
Pin 2 OFF
Pin 3 ON
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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