User guide
7
- PROFINET Communication Unit DL-PN1 User’s Manual (SK-1000) -
*1 External input request to the sensor amplifiers connected to the DL-PN1 (Slot 0) can 
be executed en bloc. (Smart Access function)
Functions assigned to the external input request 1 to 4 are as follows:
• External input request 1: ZERO SHIFT input
• External input request 2: TIMING input
• External input request 3: RESET input
• External input request 4: ERROR CLEAR input
Refer to the SK-1000 series instruction manual.
 Sensor amplifier (Slot 1 to 8)
 Output
Functions assigned to the external input request 1 to 4 are as follows:
• External input request 1: ZERO SHIFT input
• External input request 2: TIMING input
• External input request 3: RESET input
• External input request 4: ERROR CLEAR input
Refer to the SK-1000 series instruction manual.
 Communication Methods
The following describes how the I/O controller communicates with the DL-PN1 (data I/O 
communication).
• "Reading an output from a sensor amplifier" (page 8)
• "Entering an external input to a sensor amplifier" (page 8)
• "Reading comparator values (P.V. values) from sensor amplifiers" (page 9)
Address Bit Function name Description Value
1 to 8
0 External input request 1
Requests the external input to the 
sensor amplifiers.
0: OFF
1: ON
1 External input request 2
Requests the external input to the 
sensor amplifiers.
0: OFF
1: ON
2 External input request 3
Requests the external input to the 
sensor amplifiers.
0: OFF
1: ON
3 External input request 4
Requests the external input to the 
sensor amplifiers.
0: OFF
1: ON
4 Reserved for system - -
5 Reserved for system - -
6 Reserved for system - -
7 Reserved for system - -










