
3-5 Overview of PROFIBUS DP Communication
3-22
- PROFIBUS DP Compatible Network Unit DL-PD1 User's Manual (GT-70A) -
Executing Communication
I/O mode
In the I/O mode, the control output of the sensor amplifiers connected to the DL-PD1
can be read and external input request to the sensor amplifiers can be performed.
DL-PD1 (Slot 0)
Input
Output
* In the big endian format
Functions assigned to the external input request 1 to 3 are as follows:
• External input request 1: PRESET input
• External input request 2: TIMING input
• External input request 3: RESET input
Refer to the GT-70A series user's manual.
Octet
Function
name
Description Bit7 Bit6
:
Bit1 Bit0 Value
0
High
ON/OFF of the High state
of the sensor amplifiers is
output.
Slot 15 Slot 14
:
Slot 9 Slot 8
0: OFF
1: ON
1Slot 7Slot 6
:
Slot 1
Reserved for system
2
Low
ON/OFF of the Low state
of the sensor amplifiers is
output.
Slot 15 Slot 14
:
Slot 9 Slot 8
0: OFF
1: ON
3Slot 7Slot 6
:
Slot 1
Reserved for system
4
Go
ON/OFF of the Go state
of the sensor amplifiers is
output.
Slot 15 Slot 14
:
Slot 9 Slot 8
0: OFF
1: ON
5Slot 7Slot 6
:
Slot 1
Reserved for system
6
Reserved
for system
-
- -
:
- -
-
7 - -
:
- -
8
Reserved
for system
-
- -
:
- -
-
9 - -
:
- -
Octet
Function
name
Description Bit7 Bit6
:
Bit1 Bit0 Value
0
External
input
request 1
Requests the external
input to the sensor
amplifiers.
Slot 15 Slot 14
:
Slot 9 Slot 8
0: OFF
1: ON
1Slot 7Slot 6
:
Slot 1
Reserved for system
2
External
input
request 2
Requests the external
input to the sensor
amplifiers.
Slot 15 Slot 14
:
Slot 9 Slot 8
0: OFF
1: ON
3Slot 7Slot 6
:
Slot 1
Reserved for system
4
External
input
request 3
Requests the external
input to the sensor
amplifiers.
Slot 15 Slot 14
:
Slot 9 Slot 8
0: OFF
1: ON
5Slot 7Slot 6
:
Slot 1
Reserved for system
6
Reserved
for system
-
- -
:
- -
-
7 - -
:
- -
8
Reserved
for system
-
- -
:
- -
-
9 - -
:
- -
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