487
Hayes Modem AT Command Protocol
Appendix N
Password Verification (Sequence No. 552 (Hex 0228))
A password can be verified by executing sequence No. 552 of this protocol. It is required to set in advance the
value of the password in the words specified by the second operand of PMCR(260).
Operand and Send Data Word Settings of PMCR(260)
Setting Example
When password is OMRON-CO.
OPR 2
#0228
OPR 3
Address of first word where the password is set S
OPR4
None (Set #0000)
S+0
Number of words from address set for operand 3 to end of data 4 digits Hex
S+1
Number of bytes of comparison data (normal value of pass-
word)
4 digits Hex
S+2
:
S+n
Comparison value (password normal value)
(Fill data to left for odd numbers of bytes)
ASCII
Code length of PMCR(260) when it is used (words)
Character string length of dialling operation sent to modem (bytes)
000B
0008
4154
A T
4454
D T
3031
0 1
2D32
– 2
3334
3 4
3500
5
#
Code length of PMCR(260) when it is used (words)
Character string length of password sent to modem (bytes)
0008
0006
4F4D
O M
524F
R O
4E2D
N –
434F
C O
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