Granville-Phillips Mini-Convectron 275 Series, Installation, Operation And Service Instructions, Page: 29 / 52

Installation, Configuration
Mini-Convectron
®
Module with DeviceNet
®
Digital Interface 21
4.6 Configuring Polled
I/O Data Format
The 275 Mini-Convectron Vacuum Gauge Module can input data to the
network in two data types and status information can be included. The
default format inputs one byte of status data and floating point pressure. See
Table 5-5 on Page 35 for status bit definitions.
4.7 Trip Point Relays The default trip point relay configuration is disabled. The trip point value
indicates the pressure that causes the trip point to change state as pressure is
going down. The trip point will clear when pressure rises above
Trip_Point (Hysteresis * Trip_Point_Value). For the default
hysteresis of 20%, the trip point will clear when the pressure reaches 20%
(hysteresis value = 0.2) over the trip point pressure value.
Table 4-5 Configuring Polled I/O Data Format
Parameter Service Class Instance Attribute Data
1 Byte Status and
4 Bytes Floating
Point Pressure 10
hex
4 0 65
hex
5 (Default)
4 Bytes Floating Point
Pressure 10
hex
4 0 65
hex
4
1 Byte Status and
2 Bytes Integer Pressure 10
hex
4 0 65
hex
2
2 Bytes Integer Pressure 10
hex
4 0 65
hex
1
* These parameters are non-volatile, the setting will remain after power is cycled.