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In principle, USB interfaces have the following characteristics:
● Integrated power supply up to 500 mA for each socket.
● Maximum cable length 3 m (Length including the supply cable to the hub and the connected
terminal device; only 1 hub is permitted. It should be noted that some keyboards already
have a hub.)
Note
Cables that are too long can result in malfunctions or faults on the screen
Observe the following restrictions for the USB front interface for connecting operator panels
to the keyboard, mouse or USB FlashDrive:
● Maximum cable length: 1.8 m
● Extension cables are not permissible
● Hot-plugging-capable devices are connected during operation and are identified
automatically.
Note
Correct identification is only guaranteed for USB I/Os that comply to 100% with the USB
specification.
Table 4-2
Assignment of the USB interface
Type A socket
Type B socket
Pin
Name
Type Remark
1
P5V_fused
V
+ 5 V (fused)
2
Data-
B
Data -
3
Data+
Data +
4
GND
V
Ground (reference potential)
USB sticks
If you want to connect a USB stick to the USB interface, preferably use the tested SIMATIC
USB stick 16 GB for this purpose (Article No.: 6ES7648-0DC60-0AA0). Alternatively, you can
use a USB stick with any memory size. It must, however, meet the following minimum
requirements:
● File system: FAT16 or FAT32
● Partitioning: only in PC partition format (MBR)
USB sticks that deviate from these requirements have not been tested and may not be
recognized by the NCU.
Connection
4.1 Pin assignment of the interfaces
TCU 30.3
26
Manual, 09/2017, A5E40874197
Summary of Contents for SINUMERIK 840D sl TCU 30.3
Page 18: ...Description 2 4 Rating plate TCU 30 3 18 Manual 09 2017 A5E40874197 ...
Page 32: ...Connection 4 1 Pin assignment of the interfaces TCU 30 3 32 Manual 09 2017 A5E40874197 ...
Page 72: ...Networking 5 4 Service and diagnostics TCU 30 3 72 Manual 09 2017 A5E40874197 ...
Page 86: ...Safety symbols TCU 30 3 86 Manual 09 2017 A5E40874197 ...