Rockwell-automation 57C442 Data Highway Plus Interface Module Manual de usuario descargar pdf (Pagina 21)

4-3

4.1.2 Data Registers

The data image in the dual port memory appears as a subset of the

PLC-5 data table. The equivalent AutoMax and Modicon registers on

the module are shown in figure 4.3.

R/0 32 Data Highway Plus station address (0-77 octal). The value comes

from the thumbwheel switches on the faceplate and is updated

only on power-up. The module will not begin to communicate on

the network until the station address is properly set and bit 0 in

in the AutoMax Programming Executive software will display the

station address in decimal or hexadecimal notation.

R/0 33 Data Highway Plus Extended Status (EXT STS) error code. Refer

to Appendix H.

R/0 34-37 Data Highway Plus active station list. This is an array of 64 bits

representing the status (1=active, O=inactive) of each station on

a Data Highway Plus network. Refer to Appendix F for

information on how this list is mapped to these registers. The

local station does not appear on this list.

38-39 Not used.

R/0 40-57 Data Highway Plus Diagnostics Counters. Refer to Appendix G.

58-60 Not used.

R/0 61 Module Software Revision Level. A value of 100 indicates version

1.00, and so on.

R/0 62-63 Interface module ID (ASCII ’GTWY’)

Multibus Access Data HighwayPlus

(AutoMax application tasks) Access

Read Only Binary file B3 Read/Write

Data Highway Plus

addresses B3:0 - B3:999

AutoMax Registers 64-1063

Read/Write Binary file B4 Read Only

Data Highway Plus

addresses B4:0 - B4:999

AutoMax Registers 1088-2087

Read/Write Binary file B5 Read/Write

Data Highway Plus

addresses B5:0- B5:999

AutoMax Registers 2088-3087

Command Buffer Area

AutoMax Registers 3584-4095

Global Registers Area

AutoMax Registers 4096-4352

Read/Write Integer file N7 Read/Write

Data Highway Plus

addresses N7;0 - N7:999

AutoMax Registers 4384-5383

Figure 4.3 – PLC-5 Data Image

R/W Reg# Description

Figure 4.2 – Status and Control Register Assignments

1 2 ... 16 17 18 19 20 21 22 23 24 25 26 ... 61 62

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