GW 7557 B
PROFIBUS to 4-ch HART Gateway
(mm)
GW-7557
The GW-7557 Gateway is specially designed for the slave device of PROFIBUS DP protocol. It
allows the PROFIBUS master to access the HART slave devices. These HART slave devices may be
a transmitter, an actuator, a current output device and so forth. In addition, we also provide the utility
software for users to configure the GW-7557. By using this module, users can put their HART slave
devices into PROFIBUS network very easily.
Pin Assignments
Protocol & Hierarchy: DP-V0 Slave
Detect transmission rate (9.6 ~ 12000 kbps)
automatically
Max transmission speed up to 12 Mbps for PROFIBUS
and 115.2 kbps for COM Port
Max I/O Data Length : 240/240 Bytes
Support 4 HART Channels
Support HART Short/Long frame
Support HART Burst mode
Allow two HART Masters
Working in point-to-point or multi-drop HART mode
Connecting up to 15 HART modules
Network Isolation Protection: High Speed iCoupler
3000 VDC isolation protection on PROFIBUS side
4 kV ESD Protection
Block Diagram
1
Utility Features
Read/Write module configuration of the
Provide auto-scan function for HART communication
parameters
Provide test function for HART slave devices
Show PROFIBUS user parameters of the GW-7557
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
Profichip VPC3+C
Controller
Transceiver
Connector
Baud Rate (bps)
Transmission Distance (m)
Isolation
Protocol
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
HART Interface
HART Interface
HART Channel
8-pin screwed terminal block
4 channels
UART Interface
COM
COM Connector
Baud Rate (bps)
Data bit
Stop bit
Parity
RS-232 (For updating firmware and configuration)
3-pin screwed terminal block (TxD, RxD, GND )
Up to 115200
7, 8
1, 2
None, Even, Odd
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
2.0 W
Mechanism
Installation
Dimensions
DIN-Rail
72mm x 33mm x 119mm (W x L x H)
Environment
-25 ~ 75 ℃
-30 ~ 85℃
5 ~ 95% RH, non-condensing
Operating Temp.
Storage Temp.
Humidity
Applications
Ordering Information
GW-7557-B CR
PROFIBUS/HART Gateway
2
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