Datasheet

236 Programmable Controllers
CJ1W-PRM21
PROFIBUS-DP Master unit
• PROFIBUS-DP master class one with support
of DP-V1 data types.
• 7 kWord I/O
• Simple configuration through FDT/DTM
based configurator
• Special CPU unit
• Handles data independent of the CPU unit,
thus reducing CPU load
Function
The CJ1W-PRM21 is a PROFIBUS-DP Master Class1 device (DPM1).
It exchanges I/O data and communication/status information with the CPU of the PLC and I/O data and diagnistics information with PROFIBUS-
DP slave stations on the PROFIBUS network.
The CJ1W-PRM21 can be configured via any communication interface of the PLC system. Since the configuration software uses FINS commu-
nication, configuration data and diagnostic information can be routed over Controller Link, Ethernet or serial networks through up to 8 layers.
Specifications
Model Remarks
CJ1W-PRM21 Main function Basic PROFIBUS-DP master Class 1
functions plus: DPV1 data types support
Unit No. 0-15 Special CPU unit
Maximum number of units mountable per
PLC
16 Maximum depends on PLC CPU-type
Configurator CX-PROFIBUS, FTD/DTM based configura-
tor
Incorporates a Generic DTM to use with GSD-file
based slaves
Supported baud rate(s) All baud rates as specified by the standard
EN50170 Volume 2, the PROFIBUS exten-
sions to EN50170, as well as the standard
IEC61158:
9.6 kBit/s,
19.2 kBit/s,
45.45 kBit/s.
93.75 kBit/s,
187.5 kBit/s,
500 kBit/s,
1.5 MBit/s,
3 MBit/s,
6 MBit/s,
12 MBit/s
The baud rate value to be used must be selected
through the Configurator.
Selectable PROFIBUS address 0-125 Set through the configurator
Maximum number of PROFIBUS slaves 125
Maximum number of I/O points 7168 words
Maximum number of I/O points per
PROFIBUS slave
244 bytes In / 244 bytes Out
Control and status ares size 25 words
Supported Global_Control services - Sync
- Unsync
- Freeze
- Unfreeze
- Clear
Through Control Area
Supported Master-Slave communication
services
- Data_Exchange
- Slave_Diag
- Set_PRM
- Chk_Cfg
- Global_Control
Power consumption 400 mA at 5 V
Dimensions 90 x 65 x 31 mm
Weight 100 gr
Ambient temperature Operating: 0 °C to 50 °C
Y201-EN2-03.book Seite 236 Donnerstag, 30. März 2006 1:52 13