Modbus Serial Port Expander
5102-MBS3-MBM
Product Description
The ProLinx Modbus Serial Port Expander module allows you to attach up to three separate Modbus master devices to a single Modbus slave.
The module is designed to act as a multiplexer, allowing simultaneous connections from multiple Modbus masters to a single Modbus slave. A common use for the module is to have an HMI panel and a SCADA package all communicating to the same Modbus slave port of a Modicon processor.
This stand-alone DIN-rail mounted protocol gateway provides a single Modbus Master port and three Modbus Slave ports.
All Modbus serial ports are individually configurable, providing a very powerful and flexible host or device interface solution.
Product Applications
The Serial Port Expander adds three additional slave ports for a Modbus based device. This allows users to connect SCADA software, HMI, and modems to processors simultaneously. Commands from the host devices are passed through the module and routed directly to the front port of the processor. This allows a port on the processor to be expanded to allow communication with a variety of devices at the same time. Typical applications include SCADA software, local operator interface, and wireless concentrator for remote data collection.
The serial port(s) on the gateway can be individually configured to support the Modbus protocol (RTU or ASCII, Baud rate, etc.).
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General Parameters - Modbus Protocol
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Communication parameters
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Baud Rate: 110 to 115K baud
Stop Bits: 1 or 2
Data Size: 7 or 8 bits
Parity: None, Even, Odd
RTS Timing delays: 0 to 65535 ms
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Error Checking
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RTU mode (binary) with CRC-16
ASCII mode with LRC error checking
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Function Codes
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1: Read Output Status
2: Read Input Status
3: Read Multiple Data Registers
4: Read Input Registers
5: Write Single Bit
6: Write Single Data Register
15: Write Multiple Bits
16: Write Multiple Data Register
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Modbus Slave
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Node address
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1 to 247 - software selectable
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Hardware Specifications
| Power Supply |
24 VDC nominal |
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18-32 VDC allowed |
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Positive, Negative, GND Terminals |
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2.5 mm screwdriver blade |
Current Load
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500 mA max@ 32 VDC max |
| Operating Temperature |
-20 to 50 Deg C |
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-4 to 122 Deg F |
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Storage Temperature |
-40 to 85 Deg C |
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-40 to 185 Deg F |
| Relative Humidity |
5-95% (w/o condensation) |
| Dimensions |
Standard
5.20H x 2.07W x 4.52D inches
13.2cmH x 5.25cmW x 11.48cmD
Extended
5.20H x 2.73W x 4.52D inches
13.2cmH x 6.934cmW x 11.48cmD |
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LED Indicators |
Power and Module Status |
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Application Status |
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Serial Port Activity LED |
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Serial Activity and Error LED Status |
| Configuration Serial Port |
Mini-DIN |
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RS-232 only |
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No hardware handshaking |
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Ethernet Port |
10Base-T Connector |
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Link and Activity LED indicators |
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Electrical Isolation 1500 V rms at 50 Hz to 60 Hz for 60 s, applied as specified in section 5.3.2 of IEC 60950: 1991 |
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Ethernet Broadcast Storm Resiliency = less than or equal to 5000 [ARP] frames-per-second and less than or equal to 5 minutes duration |
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Application Serial Ports |
Mini-DIN |
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RS-232/422/485 |
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RS232 handshaking configurable |
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RS422/485 screw termination included |
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Port Isolation |
2500V Opto-Isolators |
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500V Power Supply Isolation |
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Shipped with each unit |
Mini-DIN to DB-9M cables per serial port |
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4 ft RS-232 configuration cable |
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2.5mm screwdriver |
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CD (docs and Configuration utility) |
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RS-422/485 DB9 to Screw Terminal |
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Adaptor (1 or 4, depending on ports) |
Click here for dimensions diagram Certifications
The ProLinx gateway module has the following certifications:
CE
ATEX Cat 3 Zone 2
cULus Haz Loc Class 1, Div 2
Ordering Information
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5102-MBS3-MBM
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Modbus Port Expander
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To place an order, please contact your local ProSoft Technology, Inc. distributor. For a list of ProSoft distributors near you, click here.
Distributors:
Place your order by email to orders@prosoft-technology.com:, fax to +1 661-716-5101.
Sales and Support:
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