932MB, 934MB: RTD/Resistance Modbus-RTU Input Modules with Limit Alarms or Discrete Outputs
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Product short description:
- 2 or 4 input channels, RTD (100 ohm Pt, 120 ohm Ni, 10 ohm Cu) or resistance (0 to 500 ohms) input
- Solid-state relays discrete output, Form A, SPST-NO
- 10 to 36V DC, 24V AC power
- Modbus-RTU high-speed RS-485
This signal conditioner is a dual or quad-channel analog input module with one discrete/relay output per input channel and a Modbus interface. It filters and linearizes RTD or resistance inputs while providing isolation between input, output, power, and network circuits.
932MB, 934MB: RTD/Resistance Modbus-RTU Input Modules with Limit Alarms or Discrete Outputs Description
The 932MB 934MB RTD/resistance Modbus-RTU signal conditioner is a dual or quad-channel analog input module with one discrete/relay output per input channel and a Modbus interface. It filters and linearizes RTD or resistance inputs while providing isolation between input, output, power, and network circuits.
Lead wire compensation and upscale/downscale sensor break detection are standard. Low voltage AC and DC power sources are supported with non-polarized, diode-coupled terminals.
The programmable inputs accommodate four RTD types plus wide-range resistance signals. Flexible discrete outputs operate as alarms or on/off controllers. As limit alarms, each discrete output can be configured with high and/or low set-points exclusively tied to an analog input channel.
Alarm trips function without host communication enabling low-cost stand-alone alarms as well as local backup for the primary control system. Otherwise, on/off control is based on commands issued by the host system.
Combining flexible transmitter functions, mixed signal I/O, alarm support, and a network interface in a single package, makes this instrument extremely powerful.
Multi-channel design adds cost-efficiency and allows high-density mounting. Plus, safe, rugged construction makes these modules reliable for use in both control room and distributed field I/O applications. Custom module configurations are also possible (consult factory for details).
Learn about the 900MB Series and view all models >
932MB, 934MB: RTD/Resistance Modbus-RTU Input Modules with Limit Alarms or Discrete Outputs Features & Benefits
- Standard Modbus RTU protocol with high-speed RS-485 communication (up to 115K bps)
- 16-bit sigma-delta A/D yields 0.1°C resolution and 0.25°C accuracy (Pt, Ni RTDs)
- RTD linearization and sensor break detection ensure reliable measurements
- Discrete relay outputs enable local temperature limit alarms or host-controlled on/off switching
- Heavy-duty 1A solid-state relays provide dependable on/off control of industrial devices
- Self-calibration lowers maintenance costs by reducing periodic manual calibration checks
- Watchdog timers provide a configurable fail-safe output state for use when host I/O communication is lost
- Four-way isolation eliminates potential ground loops between power, input, output and network circuitry
- Self-diagnostics monitor microcontroller activity to detect operational failures (lock-up) and execute a reset to restore communication
Specifications
Manuals
932MB, 934MB User Manual (Log in to download the file)
How to Use SIIG USB-to-Serial Cable With Windows Tech Note (Log in to download the file)
IntelliPack & Series 900MB Configuration Software Windows 7 or 8 User Manual (Log in to download the file)
IntelliPack & Series 900 Configuration Software: Windows 10 User Manual (Log in to download the file)
Brochures
-
5034-202: RS-485 to 3-wire Cable Converter and Cable
RS-485 to 3-wire cable converter and cable, DB-9M to 3 x 12AWG RS-485 cable, 8 ft. -
5034-214: RS232 to RS485 Serial Port Converter
Non-isolated RS232-to-RS485 serial port converter, RS232 port-powered, DB-9F to DB-9F. -
900C-SIP: Configuration Software Interface Package
- Configuration Software
- USB-to-RS232 Adapter
- RS232-to-RS485 Adapter
- Interface Cable
Additional information
Weight | 16 oz |
---|---|
Dimensions | 5 × 5 × 1.5 in |
Part Number | 932MB-0900: 2 input channels, 934MB-0900: 4 input channels |
Configuration | Windows Software Configuration |
Communication | Modbus-RTU, RS422/485 |
Product Series | BusWorks 900MB |
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Description
932MB, 934MB: RTD/Resistance Modbus-RTU Input Modules with Limit Alarms or Discrete Outputs Description
The 932MB 934MB RTD/resistance Modbus-RTU signal conditioner is a dual or quad-channel analog input module with one discrete/relay output per input channel and a Modbus interface. It filters and linearizes RTD or resistance inputs while providing isolation between input, output, power, and network circuits.
Lead wire compensation and upscale/downscale sensor break detection are standard. Low voltage AC and DC power sources are supported with non-polarized, diode-coupled terminals.
The programmable inputs accommodate four RTD types plus wide-range resistance signals. Flexible discrete outputs operate as alarms or on/off controllers. As limit alarms, each discrete output can be configured with high and/or low set-points exclusively tied to an analog input channel.
Alarm trips function without host communication enabling low-cost stand-alone alarms as well as local backup for the primary control system. Otherwise, on/off control is based on commands issued by the host system.
Combining flexible transmitter functions, mixed signal I/O, alarm support, and a network interface in a single package, makes this instrument extremely powerful.
Multi-channel design adds cost-efficiency and allows high-density mounting. Plus, safe, rugged construction makes these modules reliable for use in both control room and distributed field I/O applications. Custom module configurations are also possible (consult factory for details).
Learn about the 900MB Series and view all models >
932MB, 934MB: RTD/Resistance Modbus-RTU Input Modules with Limit Alarms or Discrete Outputs Features & Benefits
- Standard Modbus RTU protocol with high-speed RS-485 communication (up to 115K bps)
- 16-bit sigma-delta A/D yields 0.1°C resolution and 0.25°C accuracy (Pt, Ni RTDs)
- RTD linearization and sensor break detection ensure reliable measurements
- Discrete relay outputs enable local temperature limit alarms or host-controlled on/off switching
- Heavy-duty 1A solid-state relays provide dependable on/off control of industrial devices
- Self-calibration lowers maintenance costs by reducing periodic manual calibration checks
- Watchdog timers provide a configurable fail-safe output state for use when host I/O communication is lost
- Four-way isolation eliminates potential ground loops between power, input, output and network circuitry
- Self-diagnostics monitor microcontroller activity to detect operational failures (lock-up) and execute a reset to restore communication
-
Tech Papers
What is Modbus/RS485? An Introduction - 8500648 (Log in to view the file)Modbus/RS485 Network an Introduction White Paper This white paper describes the operation of Modbus as it relates to Acromag Series 900MB I/O modules. Learn more:Â What is Ethernet/IP? -
Specs & Data Sheets
Specifications
Manuals
932MB, 934MB User Manual (Log in to download the file)
How to Use SIIG USB-to-Serial Cable With Windows Tech Note (Log in to download the file)
IntelliPack & Series 900MB Configuration Software Windows 7 or 8 User Manual (Log in to download the file)
IntelliPack & Series 900 Configuration Software: Windows 10 User Manual (Log in to download the file)
Brochures
-
Software
900C-SIP: Modbus RTU Configuration Software Information Page (Log in to download the file) -
Accessories
-
5034-202: RS-485 to 3-wire Cable Converter and Cable
RS-485 to 3-wire cable converter and cable, DB-9M to 3 x 12AWG RS-485 cable, 8 ft. -
5034-214: RS232 to RS485 Serial Port Converter
Non-isolated RS232-to-RS485 serial port converter, RS232 port-powered, DB-9F to DB-9F. -
900C-SIP: Configuration Software Interface Package
- Configuration Software
- USB-to-RS232 Adapter
- RS232-to-RS485 Adapter
- Interface Cable
-
-
Additional information
Additional information
Weight 16 oz Dimensions 5 × 5 × 1.5 in Part Number 932MB-0900: 2 input channels, 934MB-0900: 4 input channels
Configuration Windows Software Configuration
Communication Modbus-RTU, RS422/485
Product Series BusWorks 900MB
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