Process and dialogue module ecomatDisplay CR1074, CR1075, CR1076, CR1077
22
≤ 1,8 m
USB connection via M12 connector
1: Dialogue module
2: USB connector, for example, in the control panel or in the dashboard
3: USB device
Permanent connection: Dialogue module – USB connector
►
Use a prewired cable�
(M12 connector, B-coded on USB socket, type A, watertight, cable
length 1.5 m, wires twisted and screened)
►
Only use cables according to the USB 2�0 specification for individual
wiring�
Keep length "B" as short as possible and position the USB connector
in the immediate vicinity of the dialogue module� The length "B"
considerably influences the quality of the USB data transmission�
► Use a connection cable with the designation "Full Speed/High Speed" (=
USB connection cable with twisted and screened cores).
►
Do not use more than one USB cable for the connection�
5.9.1 Short-circuit protection
NOTE!
The USB interface (M12 connector) is not protected against short
circuits with a live wire outside the following voltage ranges:
+5 V DC -0.3...6.0 V DC (pin 1)
–Data -0.3...3.6 V DC (pin 2)
+Data -0.3...3.6 V DC (pin 3)
ID -0.3...3.6 V DC (pin 4)
A short circuit will destroy the USB interface�
