Rockwell-automation 160 RSI SERIAL COMM MODULE Manual de usuario descargar pdf (Pagina 37)

Using the RS1 Module with a Programmable Controller 8–5

You can read or write RS1 Module parameters through location N10

or N13. For location N10, the RS1 parameters start at N10:101, thus

accessing location N10:101 reads or writes RS1 parameter P1 -

[Node Address]. For location N13, the RS1 parameters start at N13:1

(N13:1 also accesses RS1 parameter P1 - [Node Address]).

Program the Ladder for

Parameter Reads and Writes

The example ladder program in Figure 8.4 accomplishes reading and

writing drive parameters.

In the following ladder program, B3:1/4 is set when requesting a

parameter write. When no other Message Commands are enabled,

B3:0/4 will be set, starting the parameter write. For the parameter

write, data from N7:51 is written by the MicroLogix to location

N10:30 (P30 - [Accel Time]) of the RS1 Module. Bits B3:0/4 and

B3:1/4 are cleared when the Message Command is completed.

B3:1/5 is set when requesting a read of a parameter. When no other

Message Commands are enabled, B3:0/5 will be set, starting the

parameter read. For the parameter read, location N10:30 (P30 -

[Accel Time]) of the RS1 Module is read by the MicroLogix and the

data is placed in N7:52. Bits B3:0/5 and B3:1/5 are cleared when the

Message Command is completed.

Figure 8.3

MSG Commands Setup – Parameter Read/Write

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Rockwell-automation 160 RSI SERIAL COMM MODULE Manual de usuario Pagina 37