DEUTSCHMANN AUTOMATION UNIGATE IC - LONWorks, Инструкция по эксплуатации

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V
IL
V
IH
V
OL
V
OH
IN
Reset
< 0.3V / 5mA > 1.95V / 10µA
OUT
Logic
< 0.6V / 1mA > 3.8V / 0.1mA
IN
Logic
< 0.8V / 0.5mA > 1.95V / 10µA
OUT
Driver
< 0.33V / 4mA > 3.8V / 4mA
30.9.20 Instruction manual UNIGATE
®
IC - LONWorks (62) V. 2.5 14
Deutschmann Automation GmbH & Co. KG Hardware design
3.2.1 -Boot enable
The IC is started in the firmware update mode with the level GND during the power up process.
See also chapter 11.
3.2.2 Load out
Strobe signal for the synchronous serial interface. With the positive edge at this output data is
taken from the connected shift registers to the physical outputs.
3.2.3 Data out
On this line data is output on the synchronous serial interface. The most significant bit of the data
is output first.
3.2.4 Data In
Data is read in on the synchronous serial interface via this signal. The most significant bit of the
data is expected first.
3.2.5 Load In
This pin is the strobe signal for the input data of the synchronous serial interface.
3.2.6 Clock
This signal is the clock line for the synchronous serial interface. That signal is equally valid for
data input and data output.
3.2.7 -Reset In
• A reset generator (Max 809) is on board; with it in the normal case the reset input is not requi-
red. In this case the reset input has to be connected with VCC, in order to avoid interferences
(see chapter 3.6).
• If the the customer’s application has to initiate a reset of the UNIGATE
®
IC, then the reset input
can also be connected with a reset output of the customer’s application instead of connecting it
with VCC. Here all specifications of the reset signal, mentioned in chapter 3.2 have to be kept.
The reset-impulse is supposed to last at least 10 ms.
3.2.8 Service
A key to GND is to be connected to that wire. When pushing that button the IC is sending a ser-
vice oin message to the LON network. With it the IC can be logged on to the network. You can
also connect a LED to that pin 17. Pin 17 to the cathode, anode through 1.5 kOhm to +5V. (see
chapter 3.6)
• LED on: The node has no valid application code.
• blinks: Blinks at 1/2 Hz rate: The node has application code but no network configuration
information.
• No lit: The node has both application code and network configuration inormation.
3.2.9 LED - LN
Flashes when the service button is bein pushed or in case of a WInk command. It shines when a
data exchange via the LON network to the IC has taken place.
-> This LED can not be used in case of RS485-operation.