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3-2 I/O Communication

3-14

- DeviceNet Compatible Network Unit DL-DN1 User’s Manual (FD-MH) -

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

OFF

1 2 ... 37 38 39 40 41 42 43 44 45 46 47 ... 71 72

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