I-7550 I-7550-M
PROFIBUS to RS-232/422/485 Converter
I-7550
I-7550-M
The I-7550 converter is specially designed for the slave device of PROFIBUS DP protocol. It offers
RS-232, RS-422, and RS-485 three kinds of communication way. With the Hybrid COM 1 design,
users can readily choose one type of com port to use. By using this module, users can put their
RS-232/422/485 devices into PROFIBUS network very easily.
Data Flow
Protocol & Hierarchy: DP-V0 Slave
Detect transmission rate (9.6 ~ 12000 kbps)
automatically
Max length of in/output data is 128 Bytes
Address 0~126 set by DIP switch or EEPROM
Support several kinds of baud rate for COM1 from 1.2
to 115.2 kbps
Built-in self-tuner ASIC controller on RS-422/485 port
Network Isolation Protection: High Speed iCoupler
3000 VDC isolation protection on PROFIBUS side
4 kV ESD Protection
Mountable on DIN-Rail
Block Diagram
1
Pin Assignments
Hardware
CPU
SRAM/Flash/EEPROM
80186, 80 MHz or compatible
512 KB / 512 KB / 16 KB
Watchdog IC
CPU built-in
4 kV class A
Watchdog
ESD Protection
PROFIBUS Interface
Controller
Transceiver
Connector
Baud Rate (bps)
Transmission Distance (m)
Isolation
Protocol
Siemens SPC3
ADI ADM2486
9-pin female D-Sub
9.6 k, 19.2 k, 45.45 k, 93.75 k, 187.5 k, 500 k, 1.5 M, 3 M, 6 M, 12 M
Depend on baud rate (for example, max. 1200 m at 9.6 kbps )
3000 VDC for DC-to-DC, 2500 Vrms for bus-to-logic
DP-V0
UART Interface
COM
RS-232/RS-422/RS-485(can’t be used simultaneously)
3-pin screwed terminal block (RxD, TxD, GND)
4-pin screwed terminal block (RxD+, RxD-, TxD+, TxD-)
2-pin screwed terminal block (DATA+, DATA-)
1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200
7, 8
1
None, Even, Odd
COM Connector
Baud Rate (bps)
Data bit
Stop bit
Parity
LED
Round LED
PWR LED, RUN LED, ERR LED
Power
Power supply
Protection
Power Consumption
Unregulated +10 ~ +30 VDC
Power reverse polarity protection, Over-voltage brown-out protection
2.5 W
Mechanism
Installation
Dimensions
DIN-Rail
72 mm x 33 mm x 119 mm (W x L x H)
Environment
-25 ~ 75℃
-30 ~ 85℃
5 ~ 95% RH, non-condensing
Operating Temp.
Storage Temp.
Humidity
Applications
Ordering Information
I-7550-B CR
I-7550-M CR
PROFIBUS to RS-232/422/485 Converter (RoHS)
PROFIBUS to RS-232/422/485 Converter (RoHS) with Metal casing
2
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