Emerson 1C31147G01 High-Performance Pulse Accumulator Module
Designed specifically for industrial automation control scenarios, this module enables precise accumulation of pulses from two input channels and transmits critical data to the controller. It supports multiple pulse processing modes, including counting within a set time period to measure pulse speed (frequency), stopping counting upon receiving signals from the controller or external field control devices, and measuring the duration of pulses. The module is widely compatible with the Ovation Distributed Control System.
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Technical Specifications
- Number of Channels: 2 independent pulse input channels
- Field Input Voltage Range: Counting signals support 5V (high speed/medium speed), 12V (medium speed), 24/48V; control signals support 24/48V
- 24/48V Field Input Power Supply Modes: Supports common positive (1C31150G02), common negative (1C31150G01), dedicated user-defined (1C31150G03)
- Counter Output: 15-bit counting (bits 14–0), bit 15 as update bit
- Input Filter Characteristics: 1–5μs (5V high-speed); 16–38μs (5/12V medium-speed); 150–450μs (24/48V)
- Contact Debouncing: Configurable for 24/48V, 1.4–2.0ms
- Dielectric Isolation: 1000V AC/DC between channels and logic circuits
- Operating Temperature: 0 to 60°C (32°F to 140°F)
- Storage Temperature: -40°C to 85°C (-40°F to 185°F)
- Humidity Tolerance: 0% to 95% (non-condensing)
- Module Power Consumption: Main: 1.6W (typ), 2.0W (max); Aux: 0.17W (24V typ), 0.35W (48V typ)
Advantages
Multi-mode pulse processing for frequency measurement, counting, duration measurement
Wide voltage input range for strong compatibility with field devices
High-precision filtering and debouncing for accurate signal acquisition
1000V AC/DC isolation for enhanced anti-interference capability
Seamless integration with Ovation Control System
Built-in fault detection for high reliability
CE certified for harsh industrial scenarios
Application Fields
Working Principle
The 1C31147G01 Pulse Accumulator Module realizes pulse processing functions through the collaborative operation of the electronic module and the personality module. Pulse signals generated by field devices are connected to the module via terminal blocks, then purified by the input filter circuit to remove interference and impurities. According to preset configurations, the module can count the rising or falling edges of pulses, or measure pulse cycles and durations based on internal selectable time bases (100KHz, 10KHz, 1KHz). Counting and measurement data are stored in internal registers, and a data-ready signal is sent to the controller through the update bit (bit 15). The controller reads module data via the I/O bus to complete real-time monitoring of pulse-related parameters and make control decisions.
Maintenance
- Regularly inspect the connection status of module terminal blocks to ensure secure wiring without looseness, avoiding abnormal signal transmission
- Monitor the stability of module power supply voltage to ensure that the main and auxiliary power supplies meet specification requirements
- Regularly clean the module surface and installation area to maintain good ventilation and prevent dust accumulation from affecting heat dissipation
- Use diagnostic LED indicators for fault troubleshooting: P (green) = normal power, C (green) = normal communication, I (red) = internal errors
- If counting inaccuracies occur, check whether input filtering and debouncing configurations match field signal characteristics
- When replacing personality module or fuse, follow electrostatic protection specifications to avoid damaging electronic components
- Regularly back up module configuration parameters to facilitate fault recovery and system maintenance
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