917MB, 918MB: DC Current/Voltage Modbus-RTU Output Modules with Discrete Outputs
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Product short description:
- 4 analog output channels
- 0 to 20mA or 0 to 10V DC output range
- 4 discrete output channels, open drain MOSFETS (1A DC loads, 0 to 35V DC)
- 10 to 36V DC, 24V AC power
- Modbus RTU high-speed RS-485
These modules drive four analog output channels and also feature four discrete outputs for on/off control. Isolation separates the output, power, and network circuits. Network communication adheres to the industry-standard RS-485 Modbus RTU protocol.
917MB, 918MB: DC Current/Voltage Modbus-RTU Output Modules with Discrete Outputs Description
These modules drive four analog output channels and also feature four discrete outputs for on/off control. Isolation separates the output, power, and network circuits.
Network communication adheres to the industry-standard RS-485 Modbus RTU protocol. AC and DC power sources are supported with non-polarized, diode-coupled terminals.
The analog outputs generate a signal based on communication from the host. They accommodate wide DC voltage or current ranges.
Discrete outputs provide simple on/off switching capability for external devices.
Combining analog outputs, on/off controllers, 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 make it reliable for both control room and distributed field I/O use in a broad range of temperature control applications.
Custom module configurations are also possible (consult factory for details).
Learn about the 900MB Series and view all models >
917MB, 918MB: DC Current/Voltage Modbus-RTU Output Modules with Discrete Outputs Features & Benefits
- Standard Modbus RTU protocol with high-speed RS-485 communication (up to 115K bps)
- 12-bit D/A yields 0.1% of span resolution and accuracy
- Four outputs in a single inch-wide module reduces system costs and saves panel space
- Four discrete outputs enable 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 failsafe output state for use when host I/O communication is lost
- Three-way isolation eliminates potential ground loops between power, output and network circuitry
- Self-diagnostics monitor microcontroller activity to detect operational failures (lock-up) and execute a reset to restore communication
- Operating temperature: -25°C to 60°C (-13°F to 140°F), limit 917MB ambient to 50°C maximum for supply voltages less than 15V
Manuals
917MB, 918MB 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.Select options -
5034-214: RS232 to RS485 Serial Port Converter
Non-isolated RS232-to-RS485 serial port converter, RS232 port-powered, DB-9F to DB-9F.Select options -
900C-SIP: Configuration Software Interface Package
- Configuration Software
- USB-to-RS232 Adapter
- RS232-to-RS485 Adapter
- Interface Cable
Select options
Additional information
| Weight | 16 oz |
|---|---|
| Dimensions | 13 × 12 × 3 in |
| Part Number | 917MB-0900: DC Current Output Module, 918MB-0900: DC Voltage Output Module |
| Configuration | Windows Software Configuration |
| Communication | Modbus-RTU, RS422/485 |
| Product Series | BusWorks 900MB |
-
Description
917MB, 918MB: DC Current/Voltage Modbus-RTU Output Modules with Discrete Outputs Description
These modules drive four analog output channels and also feature four discrete outputs for on/off control. Isolation separates the output, power, and network circuits.
Network communication adheres to the industry-standard RS-485 Modbus RTU protocol. AC and DC power sources are supported with non-polarized, diode-coupled terminals.
The analog outputs generate a signal based on communication from the host. They accommodate wide DC voltage or current ranges.
Discrete outputs provide simple on/off switching capability for external devices.
Combining analog outputs, on/off controllers, 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 make it reliable for both control room and distributed field I/O use in a broad range of temperature control applications.
Custom module configurations are also possible (consult factory for details).
Learn about the 900MB Series and view all models >
917MB, 918MB: DC Current/Voltage Modbus-RTU Output Modules with Discrete Outputs Features & Benefits
- Standard Modbus RTU protocol with high-speed RS-485 communication (up to 115K bps)
- 12-bit D/A yields 0.1% of span resolution and accuracy
- Four outputs in a single inch-wide module reduces system costs and saves panel space
- Four discrete outputs enable 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 failsafe output state for use when host I/O communication is lost
- Three-way isolation eliminates potential ground loops between power, output and network circuitry
- Self-diagnostics monitor microcontroller activity to detect operational failures (lock-up) and execute a reset to restore communication
- Operating temperature: -25°C to 60°C (-13°F to 140°F), limit 917MB ambient to 50°C maximum for supply voltages less than 15V
-
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: What is Ethernet/IP?How to Configure Kepware KEPServerEX 5.0 for Communications with Modbus I/O Modules - 8500880Configuring Kepware KEPServerEX 5.0 for Communications with Acromag BusWorks Modbus I/O Modules Introduction This document provides example steps for configuring the Kepware KEPServerEX OPC Server for communications with Acromag Busworks Modbus RTU and Modbus TCP/IP Distributed I/O Modules. Once the server is configured, data may be read from or written to the I/O module using...How to Configure LabVIEW to Communicate with Modbus I/O Modules Via an OPC Server - 8500881Configuring LabVIEW 2009 to Communicate with Acromag BusWorks and EtherStax Modbus I/O Modules via an OPC Server Introduction National Instruments™ LabVIEW can be used to monitor and control Acromag BusWorks ® and EtherStax ® Modbus I/O modules via an OPC server. A separate application note, Configuring Kepware KEPServerEX® 5.0 for communications with Acromag BusWorks and EtherStax... -
Specs & Data Sheets
Manuals
917MB, 918MB 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.Select options -
5034-214: RS232 to RS485 Serial Port Converter
Non-isolated RS232-to-RS485 serial port converter, RS232 port-powered, DB-9F to DB-9F.Select options -
900C-SIP: Configuration Software Interface Package
- Configuration Software
- USB-to-RS232 Adapter
- RS232-to-RS485 Adapter
- Interface Cable
Select options
-
-
Additional information
Additional information
Weight 16 oz Dimensions 13 × 12 × 3 in Part Number 917MB-0900: DC Current Output Module, 918MB-0900: DC Voltage Output Module
Configuration Windows Software Configuration
Communication Modbus-RTU, RS422/485
Product Series BusWorks 900MB
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