Rockwell Automation 20-COMM-D DeviceNet Adapter Series B FRN 2.xxx User Manual
Page 183
Using the Adapter in a DPI External Comms Kit (20-XCOMM-DC-BASE)
8-3
20-COMM-D DeviceNet Adapter User Manual
Publication 20COMM-UM002G-EN-P
The data from the I/O Board is loaded into the Datalink word starting with
bit 0 of Datalink D1 and concluding with bit 14. Bit 15 of Datalink D1 is
reserved as an input valid Status flag. When the input data is valid, bit 15 =
1.
For example, for the 20-XCOMM-IO-OPT1, the digital inputs and digital
outputs are mapped as shown in
and
Figure 8.4 I/O Board Option Digital Input Mapping
Figure 8.5 I/O Board Option Digital Output Mapping
Important: On power-up or reset, the outputs will be in a ‘non-activated’
state.
Configuring the Adapter to
Use the Optional I/O Data
To configure the adapter to use the optional I/O Board, Parameters 13 -
[DPI I/O Cfg], 25 - [M-S Input], and 26 - [M-S Output] must be set. To
send input/output data from the optional I/O board to the network, do the
following:
• Turn on bit 4 (1xxxx) in Parameter 25 - [M-S Input].
• Turn on bit 4 (1xxxx) in Parameter 26 - [M-S Output].
• Turn off bit 4 (0xxxx) in Parameter 13 - [DPI I/O Cfg].
Setting the Datalink D bit 4 in the M-S Input and M-S Output parameters
directs the communication adapter to send Datalink D back to the controller.
Turning off bit 4 in the DPI I/O Cfg parameter directs the communication
adapter to not send Datalink D data back to the drive. For more information
on I/O Messaging and Configuring Datalinks, see
If the I/O Board Fault Action Jumper (JMP1) is set to the Fault
Configurable position, Parameter 23 - [Flt Cfg D1 In] is used to set the
states of the outputs when the I/O Board takes its Fault Action. For details
on setting the Fault Action jumper, see the I/O Board Option Installation
Instructions, publication 20COMM-IN002.
0
1
2
3
4
5
IN1
7
Bit
6
8
9
10
11
12
13
15 14
IN6
Datalink Out D1 Word
. . .
Status
✷
✷
✷
✷
✷
✷
✷
0
✷ ✷
1
2
3
4
5
OUT1
7
Bit
6
8
9
10
11
12
13
15 14
OUT2
Datalink In D1 Word