![VAT 95248-PAGI-0002 Installation, Operating, & Maintenance Instructions Download Page 62](http://html1.mh-extra.com/html/vat/95248-pagi-0002/95248-pagi-0002_installation-operating-and-maintenance-instructions_4129056062.webp)
Installation, Operating & Maintenance Instructions
Series 612 DN 250 (I.D. 10”), EtherCAT
VAT Vakuumventile AG, CH-9469 Haag, Switzerland
Tel +41 81 771 61 61 Fax +41 81 771 48 30 [email protected] www.vatvalve.com
282408EB
2012-04-23
62/81
3.15 Communication and timing control between Master (PLC) and Slave (VAT-Valve)
See chapter: «OUTPUT Buffer» > «PING PONG TX-BIT» and «INPUT Buffer» > «PING PONG RX-BIT».
For visual overview see the diagram below.
Fi
eldb
us
Fieldbus buffer
Microcontroller
Ping Pong Rx = Ping Pong Tx
inverted
Slave =
VAT-
Valve
PLC
Check if
Ping pong Rx = Ping Pong Tx
inverted
Fieldbus buffer
MASTER
= PLC
Ping PongTx-bit
Ping PongTx-bit
Ping PongTx-bit
Ping Pong Rx-bit
Ping Pong Rx-bit
Ping Pong Rx-bit
output
input
output
input
Slav
e in
ter
n
Mas
ter
i
ntern