Rockwell-automation 20-COMM-I Interbus Adapter Manual de usuario descargar pdf (Pagina 75)

Using Explicit Messaging (PCP Communications) 6-13

Writing Pr. 6 [Comm Flt Action] to a 20-COMM-I

In the example ladder logic program, the user would load these

registers before calling the subroutine to perform the PCP Write:

Message

Command word = 8 = PCP Write (bit 3 ON)

N23:10

Command

SLC Address

Description

Value (Hex)

N23:20

N23:13

N23:12

N23:11

N23:21

-32,760

CR# = 2 (Station 1.0)

Sub Index not used

Number of words following = 2

CR# = 2 (Station 1.0)

2FBB

8008

N23:16

Value (Dec)

Result = 0 (success)

N23:23

N23:22

N23:24

"8000" (bit 15 ON) indicates Reply message present

Status word:

"0008" (bit 3 ON) echo's the command (PCP Write)

2FB6h is the start of the 20-COMM-I parameters (Pr.1)

Index = 2FB5h+6h = Parameter 6 [Comm Flt Action

6 hex = 6 dec = Parameter 6 [Comm Flt Action]

Echo of the Command Word (PCP Write)

N23:14

N23:15

512

200

Data word 2 not used

Data Word 1 (upper byte) = 2 (Zero Data)

1 byte of data following

12219

Message

CR# = 2 (Station 1.0)

N23:0

Request

SLC Address

Description

Value (Hex)

N23:1

1= 20-COMM-I

Value (Dec)

N23:2

Parameter # = 6

N23:3

N23:4

N23:5

1 byte data write

Data Word 1 = 2 (Zero Data)

Data Word 2 not used

20COMM-UM007A-EN-P.book Page 13 Tuesday, January 22, 2002 10:52 AM

1 2 ... 70 71 72 73 74 75 76 77 78 79 80 ... 117 118

Comentarios a estos manuales

Sin comentarios

Rockwell-automation 20-COMM-I Interbus Adapter Manual de usuario Pagina 75

Comentarios a estos manuales

Relacionado con productos y manuales para Equipo Rockwell-automation 20-COMM-I Interbus Adapter