CM2904 Instruction Book © 2009 - 2022 Parker-Hannifin Corporation Page 25 of 51
CM2904 Standard software
Message definitions
o
Vbat
o
+5V ref
o
+8V ref
o
PWM1…PWM4
diag
PWM CONTROL
o
PWM 1 …PWM4 duty %
o
PWM Frequency (Hz) –
common for all PWM
channels.
DM1
Diagnostic Message 1 = Active
Diagnostic Trouble code
6.3. Message definitions
Bytes: 1- 8; Bits: 0-7
6.3.1. MDIN
Transmission repetition rate:
- Forced update period=100ms,
- Otherwise update period = 20ms on signal changes
Data length:
8 Bytes
Default priority:
6
Parameter group number:
(FF04hex)
Table 15: MDIN
Byte
Bit / Bits
Description
Type
Values
1
1
2
MDIN5
Measurement 00=disabled (open)
01=enabled (conn.
To +5V ref)
10=error (shorted)
1
3
4
MDIN6
Measurement
1
5
6
MDIN7
Measurement