VAT 655 Series, Installation, Operating, & Maintenance Instructions

Page: 65 / 112

Series 655 INSTALLATION
979645EA Edition 23.09.2019 65/112
4.10.6 Connection Object (Class ID 5)
Manage the characteristics of a communication connection
Command
Service Code Class ID Instance ID Attribute ID
Service
data length
(number of bytes)
Service
data field
Description
POLL OUTPUT
Set 16
5 2 100 1 X
Get 14
X: output assembly object number (7,8,102)
Contains the instance number of the assembly used by the poll connection to send data.
(data from host to valve)
POLL INPUT
Set 16
5 2 101 1 X
Get 14
X: input assembly object number (3,4,5,13,14,100,101)
Contains the instance number of the assembly used by the poll connection to receive data.
(data from valve to host)
BIT STROBE INPUT
Not implemented
CHANGE OF STATE
CYCLING INPUT
Set 16
5 4 101 1 X
Get 14
X: input assembly object number (3,4,5,13,14,100,101)
Contains the instance number of the assembly used by the poll connection to receive data.
(data from valve to host)
4.10.7 Discrete Input Object (Class ID 8)
Defines the interface to the open/close limit switches
Command
Service Code Class ID Instance ID Attribute ID
Service
data length
(number of bytes)
Service
data field
Description
VALVE
CLOSED CHECK
Get 14 8 1 3 1 X
This command returns:
X:
0 valve is not closed
1 valve is closed
VALVE
OPEN CHECK
Get 14 8 2 3 1 X
This command returns:
X:
0 valve is not open
1 valve is open