5 DeviceNet Operation
48
Series 275 Mini-Convectron Module with DeviceNet
Instruction Manual - 275563
5.2.1 Get Relay Trip Points
Use the explicit messages listed in Table 5-14 to get the pressure value at which a relay activates.
5.2.2 Get Enable or Disable Status of Relays
Use the explicit messages listed in Table 5-13 to get the enabled or disabled status of a relay.
After relays have been made operable, you may use explicit messages to disable any specified relay.
If you disable a relay, you must re-enable it to make it operable.
5.2.3 Get Activation or Deactivation Status of Relays
Use the explicit messages listed in Table 5-14 to get the activation or deactivation state of a relay.
Table 5-12 Get Relay Trip Points
Service Class Instance Attribute
Typical Device
Data
Data
Ty pe
Description
0E
hex
C7
hex
1 5 00 00 AF 43
hex
(350 Torr)
REAL Get pressure at which relay 1
activates
0E
hex
C7
hex
2 5 0A D7 23 3C
hex
(1 x 10
–2
Torr)
REAL Get pressure at which relay 2
activates
Table 5-13 Relay Enabled/Disabled Status
Service Class Instance Attribute
Typical Device
Data
Data
Ty pe
Description
0E
hex
C7
hex
1600
hex
BOOL 0 = Relay 1 is disabled
1 = Relay 1 is enabled
0E
hex
C7
hex
2600
hex
BOOL 0 = Relay 2 is disabled
1 = Relay 2 is enabled
Table 5-14 Relay Activation/Deactivation Status
Service Class Instance Attribute
Typical Device
Data
Data
Ty pe
Description
0E
hex
C7
hex
1700
hex
BOOL 0 = Relay 1 is deactivated
1 = Relay 1 is activated
0E
hex
C7
hex
2700
hex
BOOL 0 = Relay 2 is deactivated
1 = Relay 2 is activated