Operating instructions

Detailed descriptions
17.1 Motherboard
SIMATIC Panel PC 677B
Operating Instructions, 05/2007, A5E01035609-01
195
Pin no. Short description Meaning Input / output
12 USB_D1M USB data channel 1 Input / output
13 USB_D1P USB data+, channel 1 Input / output
14 GND Ground -
15 LCD_SEL0 Display Type-Select Signal 0 Input
16 LCD_SEL1 Display Type-Select Signal 1 Input
17 LCD_SEL2 Display Type-Select Signal 2 Input
18 LCD_SEL3 Display Type-Select Signal 3 Input
19 RESET_N Reset signal (active low) Input
20 reserved Reserved -
21 HD_LED HD LED, anode with 1 kW in series on the
motherboard
Output
22 DP_LED MPI/DP LED, anode via 1 KOhms in series on the
motherboard
Output
23 Ethernet_LED Ethernet LED, anode with 1 kW in series on the
motherboard
Output
24 TEMP_ERR Temperature error LED, anode with 1 kW in series on
the motherboard
Output
25 RUN_R Watchdog error LED, anode with 1 kW in series on
the motherboard
Output
26 RUN_G Watchdog OK LED, anode with 1 kW in series on the
motherboard
Output
Pin Assignment of the USB 2.0 interface, X42
Pin no. Short description Meaning Input / output
1 VCC + 5 V, fused Output
2 USB5 USB5_M Input / output
3 USB5 USB5_P Input / output
4 GND Ground -
S1 S Shield -
S2 S1 Shield -
Note
For detailed information on the pin assignments of the interfaces, please contact Customer
Support or the Repair Center.