20
Serial Receive Object Parameters (Class Code 65):
There are eight identical receive (Rx) instance parameters which can be set in CDN366.
This section will review one of the eight receive instance parameters. These parameters
can easily be changed using RSNetWorx. When using RSNetWorx to upload the
parameters, first go to “
Groups
”
and select “
Rx Inst 1
”.
Use Data (bit 0):
Normally, this parameter bit is set to 1. When it is enabled, the
packet data is extracted to transmit to DeviceNet.
Use Pre-String (bit 1):
When this parameter bit is set to 1, the pre-string ASCII
characters (bytes) will be removed before the PLC receives data from DeviceNet.
Pre-string characters are the ASCII characters found before the serial data.
Use Post-String (bit 2):
When this parameter bit is set to 1, the post-string ASCII
characters (bytes) will be removed before the PLC receives data from DeviceNet.
Post-string characters are the serial ASCII characters found after the data.
10)
Receive Toggle
: This parameter is
read only. When new data has been
received, bit 0 is toggle (see
Receive
Handshaking & I/O Mapping
).
11)
Receive Acknowledge:
The value
in this parameter ranges from 0~1 bit.
In the poll response, this value must
match
with the
Receive Toggle
bit to
receive new serial data on the
DeviceNet. The Sync Enabled attribute
must be enable when using this
attribute (see
Receive Handshaking&
I/O Mapping
).
12)
Receive Mode:
Bits 3~7 are
unused (label Xs). When a bits 0~2 are
set to 1, their function is enabled.
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
unused
unused
unused
unused
unused
Use Post
Use Pre
Use Data
Receive Mode (class=65, instance=1, attribute=6)
Summary of Contents for CDN366
Page 1: ...CDN366 DeviceNet Gateway Application Notes ...
Page 3: ...3 Revision Initial Release 6 12 01 ...
Page 10: ...10 Select Register a single file and enter the EDS file name on the white box Click on Next ...
Page 39: ...39 CDN366 Template Class Instance Attribute Default Setting Unit Comments ...
Page 72: ...DeviceNet RS 232 Interface Module 27 Publication 1770 5 6 June 1996 ...