Specifications

22
18) Enable: When the enable search receive string is set to 1, the current instance will
be used to process the incoming receive message (packet) to extract the data
specified in Data Type. This attribute should be disabled for all unused instances.
19) Sync Enabled: When sync enable is set to 1, the CDN366 will not respond with
new serial data until the value in the Receive Acknowledge bit has been toggled.
Enabling this attribute ensures that the master scanner module does not miss data
between polls.
Serial Transmit Object Parameters (Class Code 66):
There are eight replicate independent transmit (Tx) instances, which can be set in
CDN366. This section is using RSNetWorx to review one of eight transmit instances in
CDN366.
Note that Tx Ack., Tx toggle, Rx Ack., and Rx Toggle are attributes used in the poll
command and poll response to control the serial/DeviceNet data transfer and do not need
to be set explicitly as part of the CDN366 setup.
20) Transmit Toggle: The transmit
toggle byte for 8 instances are mapped
to 1747-SDN Output I/O table.
Instance 1 transmit toggle is bit 0. Bit
0, one of the eight bits, which toggles
between 0 & 1. When bit 0 is toggled,
the data is sent out to RS232 side of
CDN366 (see Transmit Handshaking &
I/O Mapping).
21) Transmit Acknowledge: The
transmit acknowledge byte for 8
instances are mapped to 1747-SDN
Input I/O table. The information can be
accessed as read only. Instance 1
transmit acknowledge is bit 0. Bit 0,
one of the eight bits, which toggles
between 0 & 1. When bit 0 is toggled,
data has been transmitted (see Transmit
Handshaking & I/O Mapping).