User manual

132 Publication LOGIX-AP010B-EN-P - May 2010
Appendix A Other Communication Modules
Ladder logic programming in the ControlLogix processor is required to enable
and support the Siemens 3964R protocol functionality. The ladder program
handles data encoding/decoding transferred from the module and 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.
MVI56 S3964R Specifications
Specification Type Description
Functional
Single-slot, ControlLogix 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 ControlLogix
processor or received by the communication partner.
While in 3964R without RK512 mode on PRT1 and PRT2, data can
be sent from the ControlLogix processor or be received from the
communication partner.
The maximum transfer rate is 512 bytes in any mode.
Data byte swapping can be configured to adjust to a 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.