Manual

3-2 I/O Communication
3-14
- DeviceNet Compatible Network Unit DL-DN1 User’s Manual (FD-MH) -
3
Communicating with the FD-MH series
IN area
n: The first device number assigned to the DL-DN1
The device assignments are the same for all 5-output modes including extended
modes.
The following describes how the DeviceNet mas ter unit communicates with the DL-
DN1 (slave u nit) using I/O communication (polling).
"Reading an output from a sensor amplifier" (page 3-14)
"Entering an external input into a sensor amplifier" (page 3-15)
"Readi
ng curren
t values (instantaneous flow rate) from sensor amplifiers" (page
3-15)
"Rewriting a Setting Value of a Sensor Amplifier" (page 3-16)
For the communication methods us ing explicit messaging, see "Explicit
Messaging" (page 3-17).
Reading an output from a sensor amplifier
Available outputs: Outpu t 1, Output 2, and Output 3
Device assignments: "Output" (page 3-9)
This example reads output 1 from the sensor amplifier of ID01.
It assumes that the operating mode assigned to the device is 3-ou tput mode.
(1)The output from the sensor amplifier is brought into the IN area by I/O
communication.
Device
(DEC)
Name
Bit 7 Bit 6 ··· Bit 1 Bit 0
Bit 15 Bit 14 ··· Bit 9 Bit 8
n+11 Setting-value rewrite error
ID08 ID07 ··· ID02 ID01
Reserved ID15 ··· ID10 ID09
n+12
Instantaneous fl ow rate setting
1 (P1) rewrite complete
ID08 ID07 ··· ID02 ID01
Reserved ID15 ··· ID10 ID09
n+13
Instantaneous fl ow rate setting
2 (P2) rewrite complete
ID08 ID07 ··· ID02 ID01
Reserved ID15 ··· ID10 ID09
n+14
Temperature upper limit setting
rewrite complete
ID08 ID07 ··· ID02 ID01
Reserved ID15 ··· ID10 ID09
n+15
Temperature lower limit setting
rewrite complete
ID08 ID07 ··· ID02 ID01
Reser
ved ID15 ··· ID10 ID09
n+16
Integrated fl ow
quantity setting
1 rewrite complete
ID08 ID07 ··· ID02 ID01
Reserved ID15 ··· ID10 ID09
Communication Methods
PLC
Output of sensor amplifier
IN area [n+1] BIT 0
Sensor amplifier
(1)
Output
Output 1 from ID 01
1
0
ON
OFF