KEYENCE DL-PN1 - Manual (Page 12)

10 - PROFINET Communication Unit DL-PN1 User's Manual (IB) -
Record Data Communication
 What is record data communication?
Record data communication is a function that performs communication by issuing
commands when desired. It is used for applications which do not require the punctuality
of data I/O communication, such as reading and writing I/O device settings.
 Basic Format and Flow of Record Data Communication
Record data communication uses function block, which blocks circuits being used in a
program. For Siemens SIMATEC Manager / TIA Portal, use SFB52"RD REC" and
SFB53"WR REC".
(1) Record data
communication command
(3) Record data
communication response
I/O controller Sensor amplifier
Send
Receive
Receive
Send
(2) Interpret and
execute command
DL-PN1
SFB52"RD REC"
Reads data. SFB53"WR REC"
Writes data.
Parameter name Description
EN Enables.
EN0 Shows that EN is enabled.
REQ Enables when making a request.
ID Enters the DL-PN1 or sensor amplifier ID number.
INDEX Enters the Access Address Index number.
MLEN Set to 4.
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