Rockwell Automation 20-COMM-R Remote I/O Adapter - Manual (Page 29)

Configuring the Adapter 3-3
20-COMM-R Remote I/O Adapter User Manual
Publication 20COMM-UM004D-EN-P
Setting the Rack Address If adapter Configuration DIP Switches SW7 and SW8 ( Figure 2.2 ) are both
set to ‘On’, the value of Parameter 03 - [RIO Addr Cfg] determines the
rack address. Note these points:
• Although the adapter supports rack addresses between 00 and 77 octal,
not all controllers recognize all of the addresses, and a Remote I/O
channel can support only 32 devices.
• PLC-2 controllers identify rack addresses differently than other
controllers. PLC-2 controllers identify the adapter rack address as one
plus the value of the parameter setting.
1. See Table 3.A to determine the decimal equivalent of the octal address to
be used.
The rack address must be unique.
Table 3.A Rack Addresses (Decimal Equivalent versus Octal)
2. Set the value of Parameter 03 - [RIO Addr Cfg] to the decimal
equivalent of the octal address to be used.
The address is entered and displayed as a decimal value, but is
internally converted to an octal address.
Important: The HIM and software tools, such as DriveExplorer or
DriveExecutive, will display the address as a decimal value.
3. Reset the adapter (see Resetting the Adapter on page 3-8 ).
Decimal Octal Decimal Octal Decimal Octal Decimal Octal
0 0 16 20 32 40 48 60
1 1 (Default) 17 21 33 41 49 61
2 2 18 22 34 42 50 62
3 3 19 23 35 43 51 63
4 4 20 24 36 44 52 64
5 5 21 25 37 45 53 65
6 6 22 26 38 46 54 66
7 7 23 27 39 47 55 67
8 10 24 30 40 50 56 70
9 11 25 31 41 51 57 71
10 12 26 32 42 52 58 72
11 13 27 33 43 53 59 73
12 14 28 34 44 54 60 74
13 15 29 35 45 55 61 75
14 16 30 36 46 56 62 76
15 17 31 37 47 57 63 77
Port 5 Device
20-COMM-R
Parameter #: 03
RIO Addr Cfg
1
0 <> 63
Default = 01