Rockwell-automation 1769-SM2 Compact I/O DSI/Modbus Communication Modu Manual de usuario descargar pdf (Pagina 46)

3-8 Configuring the Module

See Table 3.C for descriptions of these configuration words.

5. Click OK when finished. The MicroLogix 1500 will download the

configuration data to the 1769-SM2 module when the controller is

placed in run mode.

Special Case— Data Entry for 2 Stop Bits Communication

The Chan.1, Chan. 2, and Chan 3 tabs do not allow settings that specify 2

stop bits communication in Modbus RTU operation. For this type of

configuration, you must use the Generic Extra Data Config tab to enter

the data by performing these steps:

1. To configure a specific 1769-SM2 module channel for 2 stop bits

communication, click on the Generic Extra Data Config tab.

2. On the Generic Extra Data Config tab screen, enter the appropriate

values from Table 3.D

in the offset addresses highlighted in Figure 3.6.

Figure 3.6 Entering Data for 2 Stop Bits on Generic Extra Data Config Screen

Table 3.D Entry Data for 2 Stop Bits Communication

1769-SM2 CH Offset Address Value Description

110 3

Sets CH1 for 8-N-2 format

Sets CH1 for 8-E-2 format

Sets CH1 for 8-O-2 format

224 3

Sets CH2 for 8-N-2 format

Sets CH2 for 8-E-2 format

Sets CH2 for 8-O-2 format

338 3

Sets CH3 for 8-N-2 format

Sets CH3 for 8-E-2 format

Sets CH3 for 8-O-2 format

1 2 ... 41 42 43 44 45 46 47 48 49 50 51 ... 203 204

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Rockwell-automation 1769-SM2 Compact I/O DSI/Modbus Communication Modu Manual de usuario Pagina 46