25
5.3.5 Discharge: Discharge detection
Between pin 4 and pin 6
(0.3V max. at 30mA)
(External applied voltage 50V max.)
Low
High or open
Description
2
1
8
7
The signal is "Low" when the power supply is discharging
The signal is "High" when the main power is working
R
V
4
6
Pin 7 & 8
Short
Open
Status
Forced start UPS mode
Normal
2
1
8
7
5.3.
Forced Start: Forced start UPS mode
6
It is used to check whether the system is powered by AC power
supply or backup power supply.
5
26
5.4 Communication monitoring function
5.4.1 UART communication
LAD-360/600U series products and external controller (Controller)/PC
software can be transmitted through UART. The internal data of a single
LAD-360/600U can be set and read through communication, and
multiple parallel connections cannot be used in the configuration.
5.4.1.1 UART specification
Protocol adopts UART interface
This device adopts UART two-wire TX/RX Bus transmission mode.
Except for Error Check (CRC-8) data, all word data must conform to the
principle of High byte first transmission.
The communication experiment layer is set as follows:
Control
Setting
Baud rate
9600
Data bits
8
stop bit
1
check bit
none
Serial flow control
none
5.4.1. Communication timing
2
Minimum request period(Controller/PC to LAD):20mSec.
Maximum response time(LAD to Controller/PC to LAD): 5mSec.
Minimum packet interval time(Controller/PC to LAD): 5mSec.
TX data
RX dat a
RX data
UART RX
-
(
)
Controller/PC
UART TX
-
(
)
LAD
Request period
(Controller/PC to LAD)
Request time
(LAD to Controller/PC )
Packet Margin time
(Controller/PC to LAD)
5
Summary of Contents for LAD Series
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