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ABB 5SHY4045L0006 3BHB030310R0001 IGCT module
ABB 5SHY4045L0006 3BHB030310R0001 IGCT module

ProSoft MVI94-MCM-MHI

Product Introduction:​ The MVI94-MCM-MHI is a single-width 1794 Flex I/O module that gives a Flex processor Modbus RTU/ASCII master or slave capability plus a MHI (Mitsubishi Heavy Industries) serial drive-highway driver, allowing direct polling of MHI-spec cranes, hoists and legacy drive controllers without an external protocol converter. Data moves asynchronously between the Flex backplane and the serial field, driven by simple ladder logic.

Category:
Description
Technical Specifications:
  • Platform: Allen-Bradley 1794 Flex I/O, single slot in adapter base
  • Serial ports: PRT1 = Mini-DIN RS-232 (config/debug, hardware handshake); PRT2 = Mini-DIN RS-232/422/485 jumper-selectable, 500 V optical isolation from backplane
  • Protocols: Modbus RTU, Modbus ASCII, MHI highway emulation
  • Modbus roles: Master and/or Slave simultaneously
  • Function codes: 01, 02, 03, 04, 05, 06, 15, 16
  • Register space: up to 5000 16-bit registers user-mapped
  • Backplane load: 20 mA @ 5 VDC
  • External power: 12–24 VDC, 340–170 mA
  • Operating temperature: 0 °C to +55 °C
  • Storage: -40 °C to +85 °C
  • Humidity: 5%–95% non-condensing
  • Shock/vibration: 30 g / 5 g @ 10–150 Hz
  • LEDs: Module, Backplane Transfer, Application, Serial Activity, Error
  • Dimensions: 94 × 94 × 69 mm (H×W×D) in base
  • Certifications: CE, RoHS
Functional Features:​ Enron Modbus floating-point variant supported; user-defined command queue; MHI driver speaks legacy crane/drive telegraph frames; no PLC scan penalty—transfer is backgrounded; AOI-free, pure ladder block-transfer style.
Application Scenarios:​ Shipyard crane controls with MHI drives; pulp-and-paper machine sections; mining hoists; offshore platform skids where Flex I/O talks to mixed Modbus/MHI field devices.
Structure & Material:​ 1794-style molded housing, Mini-DIN serial connectors, optical isolators on PRT2, FR4, no Ethernet.
Working Principle:​ Flex processor writes command/response blocks into module data file via BT (block transfer) logic; module serializes them onto RS-485 as Modbus or MHI frames, collects replies, posts them back into the data file; ladder scans the file at its own pace.
Installation Requirements:​ 12–24 VDC external supply mandatory (backplane 5 V only powers logic); set PRT2 jumpers before power; 500 V isolation means shield can tie to panel ground; Flex adapter must support asynchronous BT module.
Usage Notes:​ MHI mode is not standard Modbus—only use with actual Mitsubishi Heavy drive highway or emulated endpoints; baud and parity must match oldest device on trunk; 55 °C max means no direct sun exposure in tropical sites.
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