V020-E3-2 Omron, V020-E3-2 Datasheet - Page 78

• Manufacturer Part Number: V020-E3-2
• Description: Publications, Books
• Manufacturer: Omron

Specifications of V020-E3-2

• Lead Free Status / RoHS Status: na

2-7-3
Power ON
Power OFF
62
Communicating with the PC Using C200H Direct Communication
Switching the Power ON/OFF When Using C200H Direct
Communication
Caution:
Note:
Note:
The NT20S-ST122-V1 functions as an I/O extension unit of the PC. Use the fol-
lowing procedure to switch the power ON and OFF.
Depending on the method used to switch the power ON and OFF, the entire sys-
tem may stop. Follow the procedure described below to switch the power ON and
OFF.
Switch the power ON as follows:
[NT20S power ON]
[PC power ON]
S If the power to the PC is switched on first, the CPU of the PC is subjected to a
S If the I/O connection cable is disconnected during system operation, an I/O bus
Switch the power OFF as follows:
[Switch the power supplies to the PC and NT20S off simultaneously]
S If the power to the NT20S is switched off first, the CPU of the PC is subjected to a
S Switch off the system temporarily before replacing the NT20S (when a fault oc-
. . . . . . . . . . . . . . . . . . . . .
system reset, making operations such as programming console impossible.
Then, when the power to the NT20S is switched on, “Connecting to Host” is dis-
played on the NT20S screen for approximately 1 second, after which normal op-
eration starts.
error occurs at the PC side and operation stops. If this happens, connect the I/O
connection cable and cancel the error.
system reset, making operations such as programming console impossible.
curs, for example). If the power to the NT20S only is switched off, the system
stops immediately and this could cause an accident or damage machinery.
↓
. . . . . . .
. . . .
“Connecting to Host” is displayed on the NT20S screen.
After “Connecting to Host” has been displayed for
approximately 1 second, normal operation starts.
The next time the power is switched ON, the NT20S dis-
plays the screen that was displayed when the power
was switched OFF.
Section 2-7