Vecow MTC-4021 User Manual page 68

6 EXT_IN5
7 EXT_IN6
8 EXT_IN7
9 DI_COM
10 EGND
Signal Circuit of Input NPN
Digital GPIO input signal circuit in SINK mode (NPN) is illustrated as follow.
Signal Circuit of Input PNP
Digital GPIO input signal circuit in SOURCE mode (PNP) is illustrated as follow.
Signal Circuit of Output NPN
Digital GPIO output signal circuit in SINK mode (NPN) is illustrated as follow.
GPIO Input 5 16
GPIO Input 6 17
GPIO Input 7 18
GPIO COM 19
GPIO GND 20
EXT_OUT5 GPIO Output 5
EXT_OUT6 GPIO Output 6
EXT_OUT7 GPIO Output 7
Reserved
E24V External 24V DC
Appendix A
NC
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