Euchner EKS FSA with USB Interface Instrukcja Użytkownika Pobierz pdf (Strona 41)

Manual EKS Electronic-Key Adapter USB

094485-04-11/13 Subject to technical modifications Page 41/44

8.4.2 Read process

Command message (message core, PC→ EKS, see Figure 4):

 TL (device addr.) (start addr. user data) (number of bytes of user data)

Reply message (message core, EKS → PC, 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)

 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.

Byte no. Description

Contents

ASCII

hexadecimal

decimal

Number of message bytes

Command identification

Device address

Start address for the user data

00 ... 73

0 ... 115

Number of bytes of user data

01 ... 74

1 ... 116

Figure 4: Command message read from read/write Electronic-Key (message core)

Byte no. Description

Contents

ASCII

hexadecimal

decimal

Number of message bytes

08 ... 7B

8 ... 123

Command identification

Device address

Start address for the user data

00 ... 73

0 ... 115

Number of bytes of user data

01 ... 74

1 ... 116

7 ... 122

User data

ASCII or hexadecimal or BCD (code transparent)

Figure 5: Reply message read from read/write Electronic-Key (message core)

Byte no. Description

Contents

ASCII

hexadecimal

decimal

Number of message bytes

Command identification

Device address

Padding data

Status number

Figure 6: Reply message read from read/write Electronic-Key - status (message core)

* Status number 02

hex

: Electronic-Key not in the operating distance

(For further status numbers see section 8.6)

1 2 ... 36 37 38 39 40 41 42 43 44

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