EUCHNER Electronic-Key Adapter with serial Interface - Manual (Page 19)

Manual EKS Electronic-Key Adapter serial
088796-02-03/05 Subject to technical modifications Page 19/24
Contents
Byte no. Description
ASCII hexadecimal decimal
0 Number of message bytes 07 7
1
2
Command identification
R
F
52
46 82
70
3 Device address 01 1
4
5
Padding data
00
00 0
0
6 Status number *
Figure 3: Reply message write Electronic-Key read/write - status (message core)
* Status number 00
hex
: No error
02
hex
: Electronic-Key not in the operating distance
(For further status numbers see chapter 8.7)
8.4.2 Read process
Command message (message core, PC/PLC → EKS, see Figure 3):
TL (device addr.) (start addr. user data) (number of bytes of user data)
Reply message (message core, EKS → PC/PLC, see Figure 5 or Figure 6):
For this command there are two possible replies:
RL (device addr.) (start addr. user data) (number of bytes of user data) (user data)
or
RF (device addr.) (00
hex
,00
hex
) (status number)
The reply message RL (see Figure 5) stands for correct reception of the data.
If an Electronic-Key cannot be read, an RF reply message is received (see Figure 6). The status number then
indicates the cause of the error.
Contents
Byte no. Description
ASCII hexadecimal decimal
0 Number of message bytes 07 7
1
2
Command identification
T
L 54
4C
84
76
3 Device address 01 1
4
5
Start address for the user data
00
00 ... 73
0
0 ... 115
6 Number of bytes of user data 01 ... 74 1 ... 116
Figure 4: Command message read Electronic-Key read/write (message core)