Westinghouse 1C31234G01 | Ovation Analog Output Module 4-Channel

Description Product Introduction The Ovation controller calculates a valve position. Now it has to tell the I/P transducer on that valve what to do. The 1C31234G01 sits in the I/O rack and handles that translation—taking the digital setpoint from the control logic and driving a precise 4-20 mA signal to the field. What separates this module from cheaper options? Per-channel isolation. If a field short takes out channel 2, channels 1, 3, and 4 keep running. I’ve seen plants lose a critical control loop because a single ground fault on a non-isolated card took down all four outputs. This card prevents that. Each channel also has its own DAC—16-bit resolution—so you’re not multiplexing. The signal is continuous and smooth. Key Technical Specifications Parameter Value Model 1C31234G01 Brand Westinghouse / Emerson Series Ovation Product Type Analog Output Module Number of Channels 4 Output Signal 4-20 mA (standard current loop) Resolution 16-bit per channel Accuracy ±0.1% of span (typical at 25 °C) Isolation 1500 VDC channel-to-channel and channel-to-backplane Load Resistance 0–750 Ω (maximum) Update Rate 10 ms per module (typical) Backplane Current Draw 400 mA @ 5 VDC, 100 mA @ 24 VDC (field power) Field Power Required 24 VDC external (loop-powered) Wiring Removable terminal blocks (included) LED Indicators Module status, channel active Certifications CE, UL, CSA Firmware / Software Versions & Upgrade Notes The 1C31234G01 runs firmware that controls the DAC timing and communication with the Ovation controller. Version matching matters. Recommended Version: v3.2 or later. Earlier versions (v2.x) had a known quirk: on controller power-up, outputs would briefly go to 0 mA before ramping to the setpoint. For positioners that fail closed on loss of signal, that 100 ms spike caused partial valve closures. v3.2 fixed the output initialization sequence. Compatibility: Works with Ovation 2.0 and up. If you’re on an ancient 1.x system, you need a different module (1C31223G01). Verify your controller OS version before ordering. Configuration Software: Use Ovation Developer Studio. In the I/O config, you must assign each channel a signal tag and set the failure mode (Hold Last Value, Go to High, Go to Low). This is stored in the controller, not on the module itself. Upgrade Process: Firmware updates require a JTAG programmer and the hex file from Emerson. Honestly, nobody does this in the field. You buy a new module with the latest flash. If you’re swapping a failed unit, just install it—the controller downloads the config but not the module firmware. Compatibility & Replacement Matrix Use this when swapping analog output modules in an Ovation rack. Original Model Replacement Model Compatibility Level Key Notes 1C31234G01 1C31234G01 Drop-in Identical part. Direct replacement. 1C31234G01 1C31234G02 Drop-in G02 is a later hardware revision. Adds HART pass-through capability. If you don’t use HART, it’s a 1:1 swap. Same form factor, same wiring. 1C31234G01 1C31223G01 Incompatible 1C31223G01 is an 8-channel non-isolated AO module. Different channel count, different backplane requirements, different terminal block. 1C31234G01 1C31238G01 Incompatible 1C31238G01 is a Thermocouple/RTD input module. Completely different function. 1C31234G01 5X00493G01 Needs Adaptation 5X00493G01 is a newer Ovation analog output module. It’s physically larger, requires a different terminal unit, and needs a different cable. Not a direct swap. PR6424/014-101 PLC PR6424/014-030 PR6424/015-101 DCS PR6424/015-030 PLC PR9268/601-000 PLC PR9376/010-011 PLC Email: [email protected] Phone: 86 15340683922 Sales:Wu Jiedong Our products are guaranteed for 1 year, with new and original production stopped and imported spare parts. All prices listed on the official website are subject to confirmation by contact: Wu Jiedong (manager). Our product: brand new original packaging Our warranty: All new or repaired parts have a 12 month warranty period beginning Our payment: 100% telegraphic transfer of inventory items before shipment, conditions can be proposed! If you have any downtime spare parts that you cannot find, please feel free to call or use email to contact me. If there are issues that the product cannot solve, please contact me. Product prices can be negotiated. Please do not consider contacting me!