Figure 2-6 Top View of GP200 Series Device
Zeroing GP200 Series Over DeviceNet
1. Once all the conditions outlined in the preparation sections have
been met and the pressure across the device is at 0 psid, use
the tool interface’s DeviceNet software to send an Explicit
message to the MFC to perform a “ZERO” service as described
in the S-Analog Sensor Object (0x31).
2. The tool interface’s DeviceNet software should provide a
method to route an Explicit message to the S-Analog Sensor
Object (0x31).
Typically, the structure of an Explicit message using the DeviceNet
software tool is set up as follows; 0x0E-0x31-0x01-0x0B where:
•
0X0E = Read\Get data request
•
0x31 = DeviceNet Object Class (S-Analog Sensor in this
case)
•
0x01 = Instance 1
•
0x0B = Attribute number
3. Note that data shown in the syntax 0xNN are in hexadecimal
format, therefore in the example shown above, attribute 0x0B =
decimal 11 if referencing in the attribute table.
4. To send the Explicit Zero service command to the MFC, the
structure would be as follows:
0x4B-0x31-0x01 where:
•
0x4B = Zero Service
•
0x31 = Sensor Object Class
•
0x01 = Instance 1
Note there is no requirement to send an attribute value with the Zero
service command 0x4B.
5. The MFC will respond with its appropriate action to zero itself
upon receipt of the Zero service command.
For more information, please reference the GP200 DeviceNet
Section 2 Installation
1
9
Summary of Contents for GP200 Series
Page 1: ...Installation Operation Manual GP200 Series Metal Sealed Pressure Based Mass Flow Controllers ...
Page 10: ...Table 1 3 Specifications for GP200 Series Section 1 Introduction 6 ...
Page 11: ...Section 1 Introduction 7 ...
Page 12: ...Figure 1 1 Dimensions of GP200 Series Downport Configurations Section 1 Introduction 8 ...
Page 13: ...Figure 1 2 Dimensions of GP200 Series VCR Configurations Section 1 Introduction 9 ...
