HIMA HIMatrix F3 DIO 16/8 01 - Two-Pole Connection with Common Ground; Figure 13: Two-Pole Connection with Common Ground (Three-Pole Connection)

4 Start-Up F3 DIO 16/8 01
Page 48 of 58 HI 800 177 E Rev. 1.01
4.6.3 Two-pole Connection with Common Ground
Two-pole channels can be interconnected on a common ground to allow line diagnosis,
e.g., with motors (dual motor drivers) or dual valves. The common ground is created via the
DO outputs of the channels concerned. To do so, the DO[xx][xx].In Pairs system parameter
must be configured for each pair (2 channels). For further configuration variants, also refer
to
Table 23 and Table 28. If the line diagnosis is configured in pairs on both two-pole
channels (channel 1 and 2, channel 3 and 4, channel 5 and 6, channel 7 and 8), line
diagnosis is performed. To this end, set the Line Monitoring [BOOL] -> system variable in
SILworX to TRUE and the DO[xx]-LSLB Monitoring system signal in ELOP II Factory to
TRUE. If a test is performed on one channel, the second channel is switched off to ensure
that the line diagnosis is not distorted.
A short-circuit between the two DO+ lines is not detected.
A detected line fault is reported to the user:
 In SILworX, with the system variables -> + Error Code [WORD] or -> - Error Code
[WORD].
 In ELOP II Factory, with the system signals DO[xx].+Error Code or DO[xx].-Error Code.
Load (Motor, Valve) Free-Wheeling Diode
Figure 13: Two-Pole Connection with Common Ground (Three-Pole Connection)