Modbus Master/Slave to ASCII Generic Serial Communication Module
5102-MCM-ASCII3
Product Description
The ProLinx family Modbus Master/Slave to ASCII Generic Serial communications module (5102-MCM-ASCII3) creates a powerful connection between devices on a Modbus network and ASCII devices. The module is a stand-alone DIN-rail mounted protocol gateway that provides one Modbus configurable serial port and three ASCII configurable serial ports.
The Modbus (MCM) protocol driver supports Master and Slave implementations of the protocol. All Modbus serial ports are individually configurable, providing a very powerful and flexible host or device interface solution.
The ASCII protocol driver permits the module to interface to many ASCII devices. Each ASCII port on the module is configurable to send and/or receive ASCII strings, each supporting its own individual serial network.
Product Applications
The MCM-ASCII modules are the ideal solution for the many applications where Modbus connectivity can be used to integrate ASCII serial devices into a system.
The Modbus gateway is a powerful module designed with both Client and Server support, enabling easy connection to other Modbus devices (Modicon processors and many others). In combination with the ASCII device support, the module provides a very powerful interface to the many ASCII input devices which are in use in the industrial marketplace today. Applications for the module are found in most industries, especially the Manufacturing, Oil and Gas, Electrical Power and Food Processing.
Functional Specifications
Internal Database
The ProLinx module contains an internal database that consists of areas for application data, status information, and configuration information.
The internal database is shared between all ports on the module and is used as a conduit to pass information from a device on one network to one or more devices on another network.
Application Data Area
The data area is used to store and retrieve data by the protocol drivers and for data exchange between protocols. The database is used as a source for write commands to remote devices and holds data collected from the remote devices. Commands defined in the configuration file (stored in the configuration data area) control how the data is to be handled in the database.
Status Data Area
This area is used to store error codes, counters, and port status information for each port.
Configuration Data Area
This area contains module configuration information such as port configuration, network information, and command configuration. This configuration file is downloaded to, or uploaded from, this area.
Modbus Protocol Specifications
The Modbus driver provides access to an internal database of 4000 registers (words), with extensive support provided for both the Master and the Slave implementations of the protocol. The serial port(s) on the gateway can be individually configured to support the Modbus protocol (Master or Slave, RTU or ASCII, Baud Rate, etc).
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General Parameters - Modbus Protocol
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Type
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Specifications
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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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Floating Point
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Floating point data movement supported, including configurable support for Enron implementation
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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 Master
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Type
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Specifications
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Command List
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Up to 100 command per master port, each fully configurable for function, slave address, register to/from addressing and word/bit count
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Status Data
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Error codes are provided on an individual command basis, as well as a slave status list is maintained per active Modbus Master port.
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Polling of command list
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Configurable polling of command list, including continuous and on change of data, and dynamically user or automatic enabled.
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Modbus Slave
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Type
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Specifications
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Node address
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1 to 247 - software selectable
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Status Data
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Error codes, counters and port status available per configured slave port. Status data is all pre-mapped in the module
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ASCII Serial Specifications
The ASCII driver provides a powerful connection between the internal application database in the ProLinx unit and devices supporting serial ASCII communications (bar code scanners, line printers, legacy terminal based computer systems, etc).
The serial port on the gateway is user-configurable to support ASCII communications (Baud rate, Data Bits, Stop Bits, etc). The ASCII port can act as a Master (Send ASCII strings) or as a Slave(Receive ASCII strings), or both.
When configured to send data strings, the transmission of characters strings is easily accomplished by the placement of string data in the module's application database, followed by toggling of a transmit control word. When the ASCII Serial driver detects a change in the transmit control word, the string is sent out the port.
When configured to receive data strings, the module buffers the data until the termination condition is satisfied (as configured by the user) and the receive string is then copied into the module's application data space, with the actual character count value leading the ASCII string data.
The following table provides specifications for the configuration and functionality available on the ASCII serial ports:
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ASCII Specifications
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Ports
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Available in up to four port configurations to receive and/or transmit data.
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Receive buffer size
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255 bytes
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Receive termination
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Stream mode, termination characters, message timeout, inter-character delay, or packet size length.
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Receive database location
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-1 = disable receiver, 0 to 3896
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Transmit buffer size
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255 bytes
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Transmit character with pacing
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0 to 65535 millisecond delay between each transmitted character.
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Transmit database location
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-1 = disable transmitter, 0 to 3896
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Communication Configuration
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Baud rate
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110 to 115,200
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Parity
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None, Odd, Even
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Data bits
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7 to 8
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Stop bits
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1 or 2
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RTS On and Off Timing
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0 to 65535 milliseconds
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Minimum Response Delay
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0 to 65535 milliseconds
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Hardware or software handshaking
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None, RTS/CTS, DTR/DSR, or XON/XOFF
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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-MCM-ASCII3
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Modbus Master/Slave to ASCII 3 port
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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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