What Is A Sil Ver Se Ries Oit - Maple Systems Silver Series Installation And Operation Manual

4

What is a Sil ver Se ries OIT?

The Silver Series of OITs by Maple Systems are graphics operator interfaces designed to connect to PLCs in an industrial
environment. The displays are covered with a 4-wire analog resistive touch screen designed for harsh industrial
environments. The touch screen uses the latest in touch screen technology enabling the OIT programmer to create switches
that are very fine in resolution. Unlike many other touch screen OITs on the market, the Silver Series is not limited to a fixed
number of cells in which switches can be created. The OIT programmer can create as many switches of varying sizes and
shapes as he wishes, limited only by the total amount of memory available for the project.
Three LED indicators are provided on the face of the Silver Series OIT to provide instant feedback to the OIT operator of the
current operating condition of the OIT.
LED Indicator
PWR LED (yellow)
CPU LED (green)
COM LED (red)
The Silver Series OIT has two serial ports, which provide a connection to a PLC using RS-232 or
RS-485 communications and an RS-232 connection to a computer for programming. The serial ports also provide the ability
to connect multiple OITs in series to a single PLC port! The two serial ports also provide the ability to use the EZware-500
configuration software in Simulation Mode enabling the OIT programmer to test his project on the PC instead of
downloading the project to the OIT.
The Silver Series is powered using +24VDC. The viewing level of the OIT display can be adjusted using a contrast switch
located on the back of the unit, or using Local Bits LB9091 and LB9092 for Contrast Up/Down. Finally, a reset switch is
provided on the back of the OIT to reinitialize the OIT if an operational failure occurs. The Silver Series is designed for
industrial environments and carries a NEMA 4 rating as well as CE compliance for noise immunity and emissions.
The HMI504T will operate at 12 VDC.
There are currently SEVEN models in the Silver Series.
Model Display size
HMI504T 4.3"
HMI520T 5.6"
HMI520T E
5.6"
(Enhanced)
HMI530T 7.7"
HMI530TE
7.7"
(Enhanced)
HMI550H 10.4"
HMI550HE
10.4"
(Enhanced)
Finally, the Silver Series are powered by a 200 MHz Intel XScale processor, making it one of the fastest OITs available on
the market. Even the most complicated graphics can be displayed quickly on the OIT screen. In addition, the OIT uses a
proprietary algorithm to find the most efficient means of extracting data from the PLC. This lowers the amount of
'bottleneck' time due to the relatively slow communications baud rate of most PLCs. Therefore, the update rate to gather
information from the PLC is very fast.
1010-1001a, Rev 02
Purpose
indicates if power is applied to the OIT
indicates if the OIT is operating correctly
indicates communications activity on PLC port
Resolution
LCD Type
(pixels)
256-color
480 x 272
TFT
256-color
320 x 234
TFT
256-color
320 x 234
TFT
256-color
640 x 480
TFT
256-color
640 x 480
TFT
256-color
640 x 480
TFT
256-color
640 x 480
TFT
Sil ver Se ries In stal la tion & Operation Man ual
Brightness
Contrast
(cdm 2 )
300 400:1
500 150:1
500 150:1
400 250:1
400 250:1
400 300:1
400 300:1
Ethernet &
Recipe/RTC
Compact
Module
Flash
No No
Standard No
Standard Yes
Standard No
Standard Yes
Standard No
Standard Yes