Mitsubishi MELSEC QS Series, Руководство пользователя

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6
- 20 6.3 CPU access password
6
FUNCTIONS
(b) Types and number of characters that can be used for CPU access
passwords
Set a CPU access password made up of 6 - 14 single-byte Latin letters, numbers,
and symbols (the shaded section of Table6.7).
(Uppercase and lowercase letters are differentiated.)
POINT
1. At the factory setting, CPU access password is not set in the CPU module.
When using the CPU module, set the CPU access password with GX
Developer and register it in the CPU module.
(GX Developer online operation is not possible unless the CPU access
password is registered to the CPU module.)
2. The user must manage the CPU access password carefully.
If a CPU access password has already been set in the CPU module, writing to the
PLC is not possible unless that same password is set in the GX Developer project.
Also, the set password cannot be changed.
If you lose the CPU access password, it is necessary to initialize the CPU module
by initializing the PLC memory, then write the project to the PLC again.
For details on how to initialize the PLC memory, refer to Section 6.4.
3. The CPU access password can be registered to the CPU module in the
following cases.
• CPU operation mode: TEST MODE
• CPU operation status: STOP status
4. Set a different CPU access password for each CPU module.
Table6.7 Characters that can be used for CPU access passwords
MSD 0 1 2 3 4 5 6 7
LSD 000 001 010 011 100 101 110 111
0 0000 NUL DLE (SP) 0 @ P ` p
1 0001 SOH DC1 ! 1 A Q a q
2 0010 STX DC2 “ 2 B R b r
3 0011 ETX DC3 # 3 C S c s
4 0100 EOT DC4 $ 4 D T d t
5 0101 ENQ NAK % 5 E U e u
6 0110 ACK SYN & 6 F V f v
7 0111 BEL ETB ‘ 7 G W g w
8 1000 BS CAN ( 8 H X h x
9 1001 HT EM ) 9 I Y i y
A 1010 LF SUB * : J Z j z
B 1011 VT ESC + ; K [ k {
C 1100 FF FS , < L ¥ l |
D 1101 CR GS - = M ] m }
E 1110 SO RS . > N ^ n ~
F 1111 SI US / ? O _ o DEL