Deployment Ptp Communication; Fast Introduction - YASKAWA VIPA System SLIO Manual

Deployment PtP communication

Fast introduction

6 Deployment PtP communication
6.1 Fast introduction
General
Protocols
Parametrization
Communication
Overview FCs/SFCs for
serial communication
170
The CPU has the interface X3 MPI(PtP) with a fix pinout. After an overall reset the inter-
face has MPI functionality. By appropriate configuration the PtP function (point to point)
can be enabled:
n PtP functionality
– Using the PtP functionality the RS485 interface is allowed to connect via serial
point-to-point connection to different source res. target systems.
The protocols respectively procedures ASCII, STX/ETX, 3964R, USS and Modbus are
supported.
The parametrization of the serial interface happens during runtime using the FC/SFC 216
(SER_CFG). For this you have to store the parameters in a DB for all protocols except
ASCII.
The FCs/SFCs are controlling the communication. Send takes place via FC/SFC 217
(SER_SND) and receive via FC/SFC 218 (SER_RCV). The repeated call of the FC/SFC
217 SER_SND delivers a return value for 3964R, USS and Modbus via RetVal that con-
tains, among other things, recent information about the acknowledgement of the partner
station. The protocols USS and Modbus allow to evaluate the receipt telegram by calling
the FC/SFC 218 SER_RCV after SER_SND. The FCs/SFCs are included in the consign-
ment of the CPU.
Use FCs instead SFCs
Please regard that the special VIPA SFCs are not shown in the SLIO
CPU. Please use for programming tools e.g. Siemens SIMATIC Manager
and TIA Portal the according FCs of the VIPA library.
The following FCs/SFCs are used for the serial communication:
FC/SFC
FC/SFC 216
FC/SFC 217
FC/SFC 218
More information about the usage of these blocks may be found in the
manual "SPEED7 Operation List" from VIPA.
Description
SER_CFG RS485 parameterize
SER_SND RS485 send
SER_RCV RS485 receive
HB300 | CPU | 013-CCF0R00 | en | 19-30
VIPA System SLIO