1785-PFB Product datasheet
Model number: |
1785-PFB |
|
Module Type: |
VME Processor Card |
Manufacture: |
Allen-Bradley |
|
Condition: |
Brand New |
Range of Product: |
PLC-5 |
|
Lead time: |
In Stock |
Weight: |
0.72kg |
|
HS CODE: |
8537101190 |
Dimension: |
4.1x18.8x26.2cm |
|
MOQ: |
1 |
Product Origin: |
USA |
|
System: |
PLC |
Discontinued on: |
July 31, 2011 |
|
Communication Service: |
Ethernet router |
1785-V40L Functional Description
The 1785-PFB is a Profibus DP communication module from Allen-Bradley, specifically part of Series B of the PLC-5 Profibus modules. Designed for use with PLC-5 processors, this module facilitates high-speed data exchange between automation systems and remote I/O peripherals. Key features include a remote input-output scanner, an LED display, an RS-232 serial port, and an RS-485 interface. The 1785-PFB Profibus DP communication module enhances communication efficiency through its DP master and DP slave units, where the master requests data from the slave, which then responds, ensuring smooth, organized data transfers. The module supports a cyclic communication mechanism, ensuring continuous database updates between devices.
One notable feature of the 1785-PFB Profibus DP communication module is its ability to detect and report duplicate station addresses between the DP master and slave units. However, caution is required when installing or removing the module, as it must not be done while the system is powered. Additionally, the module operates using a polling method, where the DP master unit sends out requests to slave units for I/O data exchange. The DP master must also manage a set of configuration data for each slave, which includes bus parameters and address assignments to enable proper communication on the Profibus network. This makes the 1785-PFB Profibus DP communication module a vital component for efficient automation and data exchange in distributed systems.
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Classic PLC-5 Family Processor Features
From the family of PLC-5 processors, you can choose the processor(s) that you need for your application. Features common to all Classic PLC-5
processors are:
The PLC-5 processor in adapter mode acts as a remote station to the supervisory processor. The adapter-mode PLC-5 processor can monitor and control its processor-resident local I/O while communicating with the supervisory processor via a remote I/O link.