Proface LT3300 - 5.7 All-in-One HMI" - Manual (Page 31)

LT3000 Series Hardware Manual
2-4
2.1.2 Performance Specifications
„ Performance Specifications
Application
*1
*1 It is user active capacity.
FLASH EPROM 6MB
Data Backup
SRAM 128K byte
Used lithium battery for backup memory
In
terf
ace
DIO Interface
The interface to external I/O equipment
Input/Output points: 12-point inputs, 6-point outputs
Connector: 22 pins
AUX Interface/
Expansion Unit Interface for external additional unit only
(such as communication equipment) (external)
USB Host Interface
Conforms to USB1.1. (TYPE-A conn.) x 1
Power Supply Voltage: DC5V ±5%
Output Current: 500mA (max.)
Communication Distance: 5m (max.)
EX Module
Interface Interface for Pro-face’s EX Modules
(Up to two EX modules can be connected)
Clock Accuracy
*2
*2 The LT’s internal clock has a slight error. At normal operating temperatures and con-
ditions, with the LT operating from its lithium battery, the degree of error is 65 seconds
per month. Variations in operating conditions and battery life can cause this error to
vary from -380 to +90 seconds per month. For systems where this degree of error will
be a problem, the user should be sure to monitor this error and make adjustments
when required.
±
65 seconds/ month (at room temperature)
Control Memory
Variable Area 64 KB SRAM (uses lithium battery)
Program Area 132 KB FLASH EPROM
• When the message “RAAA051 Low battery” is displayed, supply power to the display
unit and fully charge the battery. The battery charges within 24 hours to a level which
allows backup operation. Completing a full charge requires about 96 hours (4 days).
• A Lithium battery’s lifetime is: 10 years when the battery’s ambient temperature is 40°C
or less. 4.1 years when the battery’s ambient temperature is 50°C or less. 1.5 years when
the battery’s ambient temperature is 60°C or less.
When used for backup:
Approximately 100 days, with a fully charged battery.
Approximately 6 days, with a half-charged battery.