Description
Schneider Electric 140CPU11302 Processor Module Modicon Quantum
Configured for deterministic PLC scan execution and serial/network communication handling in Modicon Quantum automation infrastructure, the Schneider Electric 140CPU11302 Modicon Quantum - 1 Modbus RS232, 1 Modbus Plus (80186 Processor Module) provides direct backplane-based control processing for I/O coordination and Modbus protocol execution across Quantum system racks.
Suffix Breakdown & Model Matrix
No formal suffix decomposition is defined in the provided dataset for this processor module. The designation is treated as a single fixed hardware identifier: 80186 within the Modicon Quantum processor family.
Hardware Specifications
| Parameter |
Specification |
| ModelBrand |
Schneider Electric 140CPU11302 |
| Weight |
0.3 kg (0.7 lb US) |
| Dimensions |
Not specified in provided data |
| OperatingTemp |
0 to 60 degC |
| PowerConsumption |
780 mA backplane current requirement |
| CPU Architecture |
80186 microprocessor |
| Clock Frequency |
20 MHz |
| Internal Memory |
109 kB RAM |
| Communication Ports |
1 x Modbus RS232, 1 x Modbus Plus |
| I/O Capacity |
64 I/64 O local max, 64 I/64 O remote max |
Schneider Electric Backplane Communication & Modbus Execution Profile
The module executes cyclic scan control via Modicon Quantum rack backplane arbitration, synchronizing distributed I/O words and remote drops through deterministic update cycles. Modbus RS232 is used for point-to-point serial data exchange, while Modbus Plus supports multi-drop network segmentation with token-based access control. Processor timing behavior is defined by 0.3 to 1.4 ms instruction execution characteristics (LL984 environment), enabling predictable scan loop sequencing. Battery-backed RAM supports parameter retention under power loss conditions, maintaining runtime integrity across restart cycles.
Frequently Asked Questions
Q1: Can the 80186 processor be hot-swapped in a live Quantum rack?
A1: The module is not designed for hot-swap operation. Removal or insertion requires power-down of the rack backplane to avoid bus arbitration faults and memory state corruption.
Q2: What is the backplane current impact of this processor?
A2: The module requires approximately 780 mA from the Quantum backplane supply, which must be accounted for in total rack power budgeting.
Q3: Does Modbus Plus operate independently of RS232 on this processor?
A3: Yes. RS232 and Modbus Plus interfaces operate as independent communication channels managed by the processor’s dual-port communication handling logic.
Field Installation Guidelines
The processor must be installed into a fully de-energized Modicon Quantum rack. Ensure correct alignment of the backplane connector before insertion to prevent pin damage or bus misalignment. Shielded communication cabling is required for both RS232 and Modbus Plus segments, with shield termination at a single earth reference point to minimize ground loop currents. Maintain separation between communication wiring and high-voltage conductors to reduce electromagnetic coupling. Verify rack power budget compliance prior to energization, with special attention to cumulative backplane current loading. Battery module should be installed and verified for retention capability prior to commissioning.
