ProSoft Technology 5204SE-MNET-PDPMV1 - Manual (Page 190)

5204SE-MNET-PDPMV1 ♦ ProLinx Gateway Reference
Modbus TCP/IP to PROFIBUS DP-V1 Pass-Through Master User Manual
Page 190 of 235
ProSoft Technology, Inc.
December 22, 2009
DFB Acyclic Mailbox Message: Write Class 1 Acyclic Data - Quantum
Some, but not all, PROFIBUS DP-V1 slaves are capable of receiving more data
that can be configured for normal cyclic polling. Acyclic data write messages
allow the PROFIBUS Master to send this additional data to slaves that can
receive it. This acyclic message initiates a PROFIBUS DP-V1 Class 1 Acyclic
Write Request. Refer to PROFIBUS DP-V1 specification EN50170 (DP-V1) for
more information.
MNETDPV1_MAILVAR_AcyclicWrite Variables - Quantum
This variable structure is the one to use with your control and sequencing logic
when you want to send a PROFIBUS DP-V1 Class 1 Acyclic Write Request.