Modbus RTU/ASCII Master/Slave Communication Module


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The PTQ Modbus Master/Slave Communication Module allows Schneider Electric Quantum processors to interface easily with other Modbus protocol-compatible devices.The PTQ Modbus module provides an easy way for users of the Schneider Electric Quantum processor to add two Modbus serial ports to the control platform.

The module acts as an Options module for the Quantum platform allowing communication on a Modbus serial network. Compatible devices include not only Modicon® PLCs (almost all support the Modbus protocol) but also a wide range of process and control devices from a variety of manufacturers. Many SCADA packages also support the Modbus protocol.


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特性 优势


  • Compatible with all common Quantum programming packages, including Concept (version 2.6 or later), and others

Modbus Master/slave Protocol Interface

  • Emulates Modbus Master or slave devices on each individually-configurable application port
  • Supports Modbus RTU and Modbus ASCII protocol versions
  • Floating-point data movement supported, including support for Enron, Daniel, and other implementations
  • Suitable for SCADA and field device interface applications


Applications using the Modbus Communication Module can be found in many industrial sectors and in the following applications:

  • Foreign device data concentrator
  • Pipelines and offshore platforms
  • Food processing
  • Mining
  • Pulp and paper
  • SCADA communications
  • Supports Enron and Daniels versions of Modbus protocol for floating point data transactions.


  •  Single Slot - Quantum backplane compatible
  •  The module is recognized as an Options module and has access to PLC memory for data transfer
  •  Configuration data is stored in non-volatile memory in the ProTalk® module
  •  Up to six modules can be placed in a rack
  •  Local rack - The module must be placed in the same rack as processor
  •  Compatible with common Quantum programming tools: UnityPro XL, Concept, ProWORX
  •  Quantum data types supported: 3x, 4x
  •  High speed data transfer across backplane provides quick data update times




 Backplane Current Load

 5 VDC ± 5%
1100 mA, maximum

 Operating Temperature

 32° F to 140° F (0° C to 60° C)

 Storage Temperature

-40° F to 185° F (-40° C to 85° C)

 Relative Humidity

 5% to 95% (without condensation)


 Sine vibration 4 to 100 Hz in each of the 3 orthogonal axes


 30 g, 11 ms in each of the 3 orthogonal axes

 LED Indicators

 Module Status
 Backplane Transfer Status
 Serial Port Activity
 Serial Port Error Status

 Configuration Serial Port (PRT1)

 DB-9M PC Compatible
RS-232 only
No hardware handshaking

 Application Serial Ports

DB-9M PC Compatible
RS-232/422/485 jumper selectable
RS-422/485 screw termination included
RS-232 handshaking configurable
500 V Optical isolation from backplane


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