MTL 8507-BI-DP - MTL Fieldbus Isolator

PAC8000 

8507-BI-DP BIM and 8701-CA-BI Carrier 

GFK-2577D 

June 2013

 PROFIBUS DP Bus Interface Module and Carrier 

The 8507-BI-DP Bus Interface Module (BIM) provides the communications link between the PAC8000 

series I/O modules and a PROFIBUS-DP host. High-speed acquisition of data from the modules and LAN 

operation speeds of up to 12 Mbaud allow the host to respond rapidly to changes in process conditions. 

The BIM gathers data from the I/O modules and makes it available to the host upon request. It is a slave to 

the PROFIBUS master. As well as cyclic data exchange, which is required for reading input and writing 

output data, the BIM supports PROFIBUS Extended Diagnostics for status information. 

The BIM(s) must be used with an 8701-CA-BI Redundant BIM Carrier, described on page 4. 

Redundant BIMs can be used for critical applications. Each BIM in the redundant pair operates in parallel, 

continually checking status to enable the backup BIM to monitor the health of the primary BIM. 

8507-BI-DP Bus Interface Module 

For details on the installation and operation of the BIM, refer to the PAC8000 I/O - PROFIBUS DP BIM 

Instruction Manual, INM8507. 

Features 

 support for up to 24 I/O modules 

 redundant operation 

 extended diagnostics for module and channel status 

 PROFIBUS network speeds of up to 12 Mbaud 

 non-volatile memory for configuration 

 configurable via PROFIBUS host 

 HART Pass-through support to monitor/configure HART devices 

 Configuration/Reset of IP address 

Parameterization 

The 8507-BI-DP supports parameterization from the PROFIBUS master.  The configuration is created in a 

PROFIBUS configurator using details provided in a GSD file. This method is fast and enables a 

configuration to be built based upon “logical” modules which represent the physical modules. Modules are 

added one at a time to the configuration.   

The configuration is passed from the PROFIBUS master to the BIM at the start of communication. If the 

system is stopped and re-started, or if the node goes through a cold start cycle, the configuration file is re

transmitted to the BIM.

Standard and Extended Diagnostics 

The PROFIBUS BIM supports Standard and Extended Diagnostics. While the Standard Diagnostics provide 

standard PROFIBUS status information, the Extended Diagnostics provide detailed information relating to 

the status of the BIM, the health of the modules and the status of I/O channels. Depending on the I/O 

module type, events such as high and low alarm, open circuit and line fault are detected. 

Extended Diagnostic messages are generated on detection of any anomalies in I/O modules. Use of the 

diagnostic capability requires suitable support in the host application. For hosts unable to use diagnostic 

data in the control algorithm, it is possible to map the diagnostic data into the input dataframe.  

8701-CA-BI Redundant BIM Carrier For details on the installation and operation of the BIM Carrier, refer to the PAC8000 I/O - PROFIBUS DP BIM Instruction Manual, INM8507. Features 

  accommodates two Bus Interface Modules 

  supports PROFIBUS-DP 

  provides dual PROFIBUS network connections 

  can be used with DIN rail or panel mounting