Pepperl+Fuchs IC-KP2-2HB17-2V1D - Page 67

IC-KP2-2HB17-2V1D
Commands
2014-02
67
Enhanced buffered read words (ER)
Command:
Response:
The R/W head makes attempts until successful, to read <WordNum> 32-bit words from the
address <WordAddr>. Only modified data is transferred via the interface.
When a read/write tag leaves the detection range, the status '05h' (read command) is output.
Byte Ty p e Bit no.
7 6 5 4 3 2 1 0
Byte 0* Telegram length, high byte 0 0 0 0 0 0 0 0
Byte 1* Telegram length, low byte 0 0 0 0 0 1 1 0
Byte 2 Command code (19h) 0 0 0 1 1 0 0 1
Byte 3 Word number/Channel/Toggle bit <WordNum> <Channel> <T>
Byte 4 Word address <WordAddr> (high byte)
Byte 5 Word address <WordAddr> (low byte)
Byte Ty p e Bit no.
7 6 5 4 3 2 1 0
Byte 0* Telegram length, high byte <TelegramLenH>
Byte 1* Telegram length, low byte <TelegramLenL>
Byte 2 Command code (19h) 0 0 0 1 1 0 0 1
Byte 3 Word number/Channel/Toggle bit <WordNum> <Channel> <T>
Byte 4 Statu s <Status>
Byte 5 Reply counter <ReplyCounter>
Byte 6 Data 00h ... FFh <Data>
Byte 7 Data 00h ... FFh <Data>
Byte 8 Data 00h ... FFh <Data>
Byte 9 Data 00h ... FFh <Data>
... Data 00h ... FFh <Data>
Byte N
1)
Data 00h ... FFh <Data>
Table 7.16 * this byte is only used with the TCP/IP and MODBUS TCP/IP protocol.
1) N = 4 x <WordNum> + 5; Ethernet/IP: N = 4 x <WordNum> + 3