Table of Contents
Advertisement
Setting the Protocol – SW3
As shown in the table below, SW3 sets the protocol being used (point-
to-point or multi-drop). If EPROM Mode is active (SW1 & SW2 are
On), the protocol will be read from P108 - [EPROM Protocol].
Important: If an "AIC+" is being used and "EPROM Mode" is
selected, SW3 must be set to "On."
Switch SW3
Switch Setting
Options
SW3
DF1 Point-to-Point
Off
(Default)
DF1 Multi-Drop
On
Selecting the Checksum Mode – SW4
Switch SW4 sets the checksum mode. Configure this mode to be
consistent with your communications and application. If EPROM
Mode is active (SW1 & SW2 are On), the checksum mode will be
read from P109 - [EPROM Checksum] (SW4 will have no effect).
Switch SW4
Switch Setting
Options
SW4
BCC (Default)
Off
CRC
On
Installation and Wiring
Special Notes
Typically used for RS-232 applications between two
devices.
Used for RS-232 applications between a number of
devices. Additional module (i.e. AIC+) is required
for RS-485 applications/networking.
Special Notes
Block checksum.
16 bit algorithm.
3–3
Advertisement
Table of Contents
