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MODBUS SERIAL CONNECTIVITY
ILX34-MBS485Modbus Serial Module for CompactLogix L1 and Point I/O Adapters
A compact RS-485 communication path for connecting field devices and SCADA applications to CompactLogix L1 or distributed 1734 Point I/O systems.
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ProSoft
ILX34
MBS485
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| 4,000 ft Maximum stated connection distance |
30 Modbus commands |
1,000 Maximum words |
RS-485 Serial interface |
Modbus Communication Layer
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Data Handling & DiagnosticsUp to 1,000 words
The module can handle up to 1,000 words of Modbus data and up to 30 commands, with up to 36 words per command. Controller Integration
An Add-On Instruction creates UDT structures for I/O, status and control data. Diagnostic data can be made available in RSLogix 5000 / Studio 5000 controller tags. Logic Control
The serial port can be enabled or disabled through ladder logic, giving the controller direct control over serial communication activity. |
| Power Supply 10–28.8 VDC |
Pointbus Current 75 mA @ 5 VDC |
Temperature 0°C to 55°C operating |
Dimensions 56 × 12 × 75.5 mm |
| 01 Read Coil Status | 02 Read Input Status | 03 Read Holding Registers | 04 Read Input Registers |
| 05 Write Single Coil | 06 Write Single Register | 08 Diagnostics | 15 Write Multiple Coils |
| 16 Write Multiple Holding Registers | |||
The module provides a serial Modbus interface within a CompactLogix L1 or distributed 1734 Point I/O environment, extending controller communication toward field devices and SCADA applications.
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FIELD LAYER
Modbus Devices
RS-485 field network
SCADA devices Field instruments Modbus nodes |
SERIAL BRIDGE
ILX34-MBS485
Modbus Master / Slave
RS-485
Up to 4,000 ft connection distance
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CONTROL LAYER
CompactLogix / Point I/O
RSLogix 5000
Studio 5000 UDTs / AOI Controller tags |
| ILX34-MBS232 RS-232 version within the ILX34-MBS family |
ILX34-MBS485 RS-485 version for longer serial connectivity |
1734 Point I/O Module is installed using compatible 1734 wiring bases |
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INDUSTRIAL PARTS INQUIRY
Ask About ILX34-MBS485For quotation support, provide the part number, quantity, destination, required date and machine/system. |
| ILX34-MBS485 — Is it suitable when Modbus devices are located far from the controller? Yes. ProSoft specifies connectivity to multiple devices up to 4,000 feet (1,219 meters) from the processor for the intended application environment. |
| ILX34-MBS485 — Can the module operate as either the Modbus Master or Slave? Yes. The serial port can be configured as a Modbus Master or Modbus Slave, allowing it to fit different control architectures. |
| ILX34-MBS485 — How much Modbus traffic can be configured? The module supports up to 30 Modbus commands, up to 36 words per command, with a total supported data capacity of up to 1,000 words. |
| ILX34-MBS485 — Which serial settings should be checked when replacing an existing Modbus module? Baud rate can be set to 2400, 4800, 9600, 19200 or 38400. Stop bits can be 1 or 2, data size can be 7 or 8 bits, and parity can be None, Even or Odd. |
| ILX34-MBS485 — Can the serial channel be controlled from the PLC program? Yes. The serial port can be enabled or disabled through ladder logic, and diagnostic data can be exposed in RSLogix 5000 / Studio 5000 controller tags. |
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