MKS Granville-Phillips Mini-Convectron 275 series - Configuring Polled I;O Data Format; Using Input Polled I;O

5 DeviceNet Operation
43
Series 275 Mini-Convectron Module with DeviceNet
Instruction Manual - 275563
5.1.2 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 5-6 and Table 5-7 for additional information for the returned pressure
formats.
5.1.3 Using Input Polled I/O
When a master polls the module for measured pressure, the format of the returned pressure value
depends on the data type.
To configure the data format for input polled I/O, see Table 5-7.
Table 5-6 Configuring Polled I/O Data Format
Parameter Service Class Instance Attribute Data
2 Bytes Integer Pressure 10
hex
40 65
hex
1
1 Byte Status and
2 Bytes Integer Pressure
10
hex
40 65
hex
2
4 Bytes Floating Point
Pressure
10
hex
40 65
hex
4
1 Byte Status and
4 Bytes Floating
Point Pressure
10
hex
40 65
hex
5 (Default)
These parameters are non-volatile; the setting will remain after power is cycled.
Table 5-7 Input Polled I/O for Pressure Values
Instance Typical device data Data type Description
1 09 79
hex
UINT UINT vacuum pressure (760 Torr)
200
09 79
hex
STRUCT BYTE exception status
UINT vacuum pressure
4 00 00 3E 44
hex
REAL REAL vacuum pressure
5 (default) 00
00 00 3E 44
hex
STRUCT BYTE exception status
REAL vacuum pressure (760 Torr)
Pressure values are transmitted in low byte to high byte order.