Initial Setup Procedure; Connection For R88A-Mcw151-E Host Link Communications - Omron PRT1-SCU11 Operation Manual

Initial Setup Procedure

2-3-6

Connection for R88A-MCW151-E Host Link Communications

2-4

Initial Setup Procedure

26
The R88A-MCW151-E uses Host link communications over 4-wire RS-422A.
The figure below shows the connection between one PROFIBUS-DP Gate-
way Unit and 1 to 15 R88A-MCW151-E units.
PRT1-SCU11
RS- Signal Pin
422A
R- 1
Inter-
face
R+ 2
FG 3
S- 4
S+ 5
Phoenix Connector
Switch SW1: OFF
Switch SW2: ON
Note 1. If the PROFIBUS-DP Gateway Unit is connected on one end of the trans-
mission 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.
After mounting the PROFIBUS-DP Gateway Unit, the following Initial Setup
Procedure must be applied to allow the Unit to start up properly and to be con-
figured for operation.
• A unique PROFIBUS node address must be selected, before the unit's
power supply is turned on, see section 2-4-1 Selecting a node address .
• Select the required baud rate to be used on the Host Link or Compoway-
F network, using the DIP-switches. Disable the Auxiliary port, using the
DIP-switches.
• Select the required physical layer, either RS-422 for a Host Link network,
or RS-485 for a Compoway-F network. Switch number 1, directly over the
RS-422 / RS-485 connector is to be used for making the selection.
Section 2-4
R88A-MCW151-E unit
Pin Signal RS-
422A
1 RD-
Inter-
face
2 RD+
3 FG
4 SD-
5 SD+
DIP switch SW2 RS-422A Port
Pin 1 OFF Connector
Pin 2 OFF
Pin 3 OFF
R88A-MCW151-E unit
Pin Signal RS-
422A
1 RD-
Inter-
face
2 RD+
3 FG
4 SD-
5 SD+
DIP switch SW2 RS-422A Port
Pin 1 OFF
Connector
Pin 2 OFF
Pin 3 ON