DH-485 Communication Interface Module for CompactLogix
MVI69-DH485
The MVI69 DH485 Communication Module allows Rockwell Automation CompactLogix I/O compatible processors to interface easily with other DH485 protocol compatible devices. Compatible devices include not only Rockwell Automation PLCs (which support the DH485 protocol) but also a wide assortment of end devices
Features and Benefits
The MVI69-DH485 module actively issues DH-485 commands to other nodes on the DH-485 network. One hundred user-defined commands are supported by the module on each port. The CompactLogix processor can be programmed to control the activity on the port by actively enabling or disabling each command directly from the ladder logic.
The module also accepts DH-485 commands from an attached DH-485 master unit (for example, CompactLogix processor ladder logic MSG instruction). The module permits a remote master to interact with all data contained in the module. This data can be derived from other DH-485 slave devices on the network through a master port or from the CompactLogix processor
Applications
The MVI69-DH485 module can be used in any application where DH-485 network connectivity is required with the CompactLogix platform. Compatible devices on a DH-485 network include:
- SLC 5/03
- SLC 5/05 (RS-232 Channel)
- 1746BAS
- MVI69-BAS
Functional Specifications
The MVI69-DH485 module acts as an input/output module between the DH-485 network and the Rockwell Automation's CompactLogix backplane. The data transfer from the CompactLogix processor is asynchronous from the actions on the DH-485 network. A 4000-word register space in the module exchanges data between the processor and the DH-485 network.
- The module has a Common Interface File (CIF) with 244 words that can be accessed by remote DH-485 nodes
- Read and write commands can be sent associated to the following file types: status, bit, timer, counter, control, integer, float, and CIF
- User-definable module memory usage
- Two ports emulate the DH-485 devices (peer-to-peer) with distinct node addresses
- All configuration information contained in a single, user-defined text file
- CompactLogix backplane interface
- All module-related data is contained in an internal database
- Ability to add or remove nodes without disruption of the network
- Baud rates: 9600 or 19200 baud
Hardware Specifications
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Dimensions
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Standard 1769 Single-slot module
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Current Load
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800 mA max@ 5 VDC (Serial)
Power supply distance rating of 2 (L43 and L45 installations on first 2 slots of 1769 bus)
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Operating Temp.
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0 to 60 Deg C
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32 to 140 Deg F
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Storage Temp.
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-40 to 85 Deg C
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-40 to 185 Deg F
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Relative Humidity
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5 - 95% (w/o condensation)
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LED Indicators
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Power and Module Status
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Application Status
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Serial Port Activity
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Serial Activity and Error Status
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CFG Port
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RJ45 (DB-9M w/ supplied cable)
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RS-232 only
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No hardware handshaking
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App Ports (P1, P2)
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RJ45 (DB-9M w/supplied cable)
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RS-232 handshaking configurable
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500V Optical isolation from backplane
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Shipped with Unit
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RJ45 to DB-9M cables for each port
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6-foot RS-232 configuration Cable
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Ordering Information
| MVI69-DH485 |
DH-485 Communication Interface Module for CompactLogix |
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| To place an order, please contact your local ProSoft Technology, Inc. distributor. For a list of ProSoft distributors near you, click here. |
Distributors:
Place your order by email to orders@prosoft-technology.com:, fax to +1 661-716-5101.
Sales and Support:
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