Siemens S3964R Protocol Communication Module

MVI69-S3964R

The MVI69-S3964R module from ProSoft Technology allows point-to-point communication between a CompactLogix or MicroLogix controller and a partner with 3964R (with or without RK512) communication capability.

Features and Benefits

The 3964R protocol (with or without RK512) was designed by Siemens for bi-directional data communication through a point-to-point connection. It is a peer to peer protocol with read and write access. A BCC checksum ensures the safety of the transfer.

Applications

The module is ideal in control configurations where there is a need for the CompactLogix controller to exchange data with other non-Rockwell Automation control devices in low speed applications.

The MVI69-S3964R can communicate with or without RK512 devices using two RS-232, RS-422 communication lines (ports). The ports operate independently from each other.

Functional Specifications

Single-slot, CompactLogix backplane compatible

Multiple modules can be placed in a rack up to the chassis power supply limit

While in 3964R with RK512 mode on PRT1 and PRT2, DB-SEND and DB-FETCH instructions can be initiated from the CompactLogix processor or received by the communications partner

While in 3964R without RK512 mode on PRT1 and PRT2, data can be sent from the CompactLogix processor or be received from the communications partner

The maximum transfer rate is 512 bytes in any mode

Data byte swapping can be configured to adjust to a different word format

While in 3964R with RK512 mode on PRT1 and PRT2, evaluation of the header information DB (data block), DW (data word) and coordination bytes 9 and 10 is possible

Communication activity and diagnostics are available through LEDs and acknowledgment telegrams

Ladder Logic

Ladder logic programming in the CompactLogix processor is required in order to enable and support the Siemens 3964R protocol functionality. The ladder program handles the encoding/decoding of data transferred from the module as well as the initiation of protocol-specific functionality in the module. Example ladder programs are provided with the module to ease the implementation of the module in the user application.

Hardware Specifications

Ordering Information

Distributors:
Place your order by email to orders@prosoft-technology.com:, fax to +1 661-716-5101.

Sales and Support: