Graco PrecisionSwirl Instructions-Parts List Manual page 139

Command Interface Timing Diagram
Automation Outputs (PCF Inputs)
Command Bits 256-275
Value Bits 288-319
Automation Inputs (PCF Outputs)
Value Bits 128-159
Command Active Bit 160
Command Success Bit 161
Command Failure Bit 162
Command Value Coerced Bit 163
F . 76: CGM Command Interface Timing Diagram
IG
Command Interface Write Operation
1. Set Command Identification Bits and Fluid
Plate/Swirl Identification Bits to the desired values.
2. Set Value Bits (Output) with the value that is desired
to be written.
3. Set Write Bit.
4. Wait for the Command Active Bit to become set.
This indicates that an operation is in process.
5. Wait for the Command Success Bit, Command Fail-
ure Bit, or Command Value Coerced Bit to become
set.
NOTE: The Value Bits (Input) now contain the value that
was actually written.
6. Clear the Write Bit to end the write command
operation.
Command Interface Read Operation
1. Set Command Identification Bits and Fluid
Plate/Swirl Identification Bits to the desired values.
2. Set Read Bit.
3. Wait for the Command Active Bit to become set.
This indicates that an operation is in process.
3A2098S
Appendix C - Communications Gateway Module (CGM) Connection Details
Write Command
Write Bit 321
Read Bit 320
Bits Set
Bits Set
Bits Set
4. Wait for the Command Success Bit or Command
Failure Bit to become set.
NOTE: If Command Success Bit has been set, valid
data will be present within the Value Bits (Input).
5. Clear the Read Bit to end the read command
operation.
Fluid Plate/Swirl Identification Commands
Output Bits 268-275
0xB0
0xB1
0xB2
0xB3
0xE1
0xE2
0xE3
0xE4
Fluid Plate Commands
Output
Bits
256-267 Description
0x004 Software Part
Number
0x005 Software Part
Number
0x006 Software Part
Number
Read Command
Bits Set
Bits Set
Description
Fluid Plate 1
Fluid Plate 2
Fluid Plate 3
Fluid Plate 4
Swirl 1
Swirl 2
Swirl 3
Swirl 4
Units
*See Units Read or
Definitions, page 145 Write
STR_3_0 Read Only
STR_7_4 Read Only
STR_11_8 Read Only
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