Rockwell-automation 20-COMM-R Remote I/O Adapter Manual de usuario descargar pdf (Pagina 31)

Configuring the Adapter 3-5

20-COMM-R Remote I/O Adapter User Manual

Publication 20COMM-UM004D-EN-P

Setting the Last Rack

If adapter Configuration DIP Switches SW7 and SW8 (Figure 2.2) are both

set to ‘On’, the value of Parameter 26 - [Last RIO Rack] notifies the

controller that this device is the last device on a specified rack. This

parameter must be set to ‘1’ (Enabled) if the drive is the last device on a

rack address that uses a PLC-2 controller. We recommend that you set this

parameter to ‘1’ (Enabled) whenever a device is the last device on a rack.

1. Set the value of Parameter 26 - [Last RIO Rack] to the desired state.

2. Reset the adapter (see Resetting the Adapter

on page 3-8).

Setting the Rack Size

If adapter Configuration DIP Switches SW7 and SW8 (Figure 2.2) are both

set to ‘On’, the value of Parameter 27 - [Rack Size] determines the rack

size. With the 20-COMM-R adapter, you can use a 1/4 or 1/2 size rack. This

I/O is the Discrete I/O. For more information about using I/O, see

Chapter 4

, Using Discrete and Block Transfer I/O.

1. Set the value of Parameter 27 - [Rack Size] to the size required for your

application.

2. Reset the adapter (see Resetting the Adapter

on page 3-8).

Port 5 Device

20-COMM-R

Parameter #: 26

Last RIO Rack

Disabled

Value Last Rack

0 Disabled (default)

1 Enabled

TIP: Additional I/O, such as Reference/Feedback and Datalinks, can be

transmitted using the Block Transfer I/O image.

Port 5 Device

20-COMM-R

Parameter #: 27

Rack Size

1/4 Rack

Value Rack Size

0 1/4 (default)

11/2

1 2 ... 26 27 28 29 30 31 32 33 34 35 36 ... 127 128

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Rockwell-automation 20-COMM-R Remote I/O Adapter Manual de usuario Pagina 31