Proface LT3300 - 5.7 All-in-One HMI" Uživatelský manuál stáhnout pdf (Strana 31)

LT3000 Series Hardware Manual

2-4

2.1.2 Performance Specifications

 Performance Specifications

Application

*1 It is user active capacity.

FLASH EPROM 6MB

Data Backup

SRAM 128K byte

Used lithium battery for backup memory

Interface

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 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.

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