User guide

midon design
TEMP08 User Guide Version 4.0x Page 20 of 25
5.10. Display Time Command (TIM)
You may find it useful to display the time independant of any normal time display,
such as prior to a polling cycle. The TIM command will accomplish that.
5.11. DS2408 Sensor Usage
5.11.1. Relay Sensors
TEMP08 has the ability to actuate relay modules based on the DS2408 port
expander chip from Dallas/Maxim. One such module is the Midon Design 1WIO.
TEMP08 supports up to 20 1WIO relay modules (MD2083) and the RLY
command input then actuates those relays (numbered from 01 to 80). Relay
numbers 01 to 04 are for the first connected 1WIO module, relay numbers 05 to
08 are for the second, and so on. Note that the leading zero for the relay number
is required. These sensors must be set to type O, via the TYP command, to be
used as relay modules.
5.11.2. LED Sensors
The LED command works the same way as the RLY command except that there
are 8 LED’s per 1WIO acted on instead of 4 relays per 1WIO. Up to 10 1WIO
LED units are supported for a total of 80 LED’s. These sensors must be set to
type L, via the TYP command, to be used as LED modules.
The RLYA<on|off> command will affect all connected 1WIO relays.
Use the LEDA<on|off> command to affect all connected 1WIO LED’s.
5.11.3. Input Sensors
TEMP08 also supports up to 20 connected 1WIO input sensors, which use the
DS2408 inputs to determine external status. The INP command can be used to
determine the status of these inputs at any time, provided that the sensor is set
to type I via the TYP command. The status is also displayed during the normal
poll cycle.
On power-up, ALL connected DS2408’s are treated as LED types and are set to
Off. Manual setup of the DS2408 via the TYP command is required after power
has been lost to the DS2408’s or TEMP08.