CM2904 Instruction Book © 2009 - 2022 Parker-Hannifin Corporation Page 29 of 51
CM2904 Standard software
Message definitions
Byte
Bit / Bits
Description
Type
Values
1
1
:
8
ADC 5 (mV) 0-8 V
Measurement 0 … 8000mV
2
1
:
8
3
1
:
8
ADC 6 (mV) 0-8 V
Measurement
4
1
:
8
5
1
:
8
ADC 7 (mV) 0-8 V
Measurement
6
1
:
8
7
1
:
8
ADC 8 (mV) 0-8 V
Measurement
8
1
:
8
6.3.5. FI & DIAG
Transmission repetition rate:
- Forced update period=100ms,
- Otherwise update period = 20ms on signal changes
Data length:
8 Bytes
Default priority:
6
Parameter group number:
(FF05hex)
Table 19: Message description for Frequency inputs and diagnostics
Byte
Bit
Description
Type
Values
1
1
LSB
:
8
Frequency Input 1 signal FI1
Measurement
0…1021 Hz
1022=error
1023=Not available
2
1
2
