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CJ1W-PRT21

PROFIBUS-DP slave unit

CJ1W-PRT21

PROFIBUS-DP I/O link unit

Installation Host PLC System CJ1
Maximum number of
Units per PLC system
40
Current consumption 400 mA (maximum) at 5V DC from PLC power supply
Weight 90 g (typical)
Environment Storage temperature -20°C to +70°C
Operating temperature 0°C to +55°C
Operating humidity 10 to 90% (non-condensing)
Conformance to
EMC- and
environmental standards
EN50081-2
EN61131-2
User
Interface
Switch settings Special I/O Machine number (00-95) by 2 rotary switch
PROFIBUS-DP node address (00-99) by 2 rotary switches
LED Indicators Unit status: RUN (green LED), ERC (red LED)
Network status: COMM (green LED), BF (red LED)
CPU status: ERH (red LED)
PLC Interface No. of CIO
words allocated
PLC → Unit: 1 word control data
Unit → PLC: 1 word status data
No. of DM
words allocated
Unit → PLC: 8 words of Unit setup information
Amount of
I/O data per Unit
Fixed:
2 words CIO area (one in, one out) for Unit status + control bits.
2 words status information from the host PLC, containing operation status and error code
(read from location A400). This information will be sent to the PROFIBUS master:
- as extended diagnostics, only at a change of data content.
- optionally, attached to the I/O data, each PROFIBUS cycle.
Variable:
2 user-defined areas for PROFIBUS I/O data, with the following restrictions:
- Up to 100 words input in one PLC area (CIO, H, D, EM).
- Up to 100 words output in one PLC area (CIO, H, D, EM).
- Inputs+outputs must be 180 words or less