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Panasonic HMI GT21C Series



Item GT21C
RS232C RS422
Rated voltage 24 V DC
Operating voltage range 21.6 to 26.4 V DC
Power consumption 4.8W max.
Power supply unit isolation method -
Ambient temperature 0 to 50 °C*1
Ambient humidity 20 to 85% RH (No dew condensation)
Storage temperature -20 to 60 °C
Storage humidity 10 to 85% RH (No dew condensation)
Vibration resistance 10 to 55 Hz (1-minute cycle): Double amplitude: 0.75 mm, 10 minutes in each of the X, Y, and Z directions
Shock resistance 98 m/s2 min: 4 times in each of the X, Y, and Z directions
Superposed noise
1,000 V [P-P] min, pulse width of 50 ns, 1ms between power supply terminals (by a noise simulator)
Environmental resistance IP65 (in the initial stages) Dust-proof and drip-proof from the front of the panel only (Rubber packing is attached to the panel contact surface.)
*When reattaching the panel, replace the waterproof packing.
Mass Approx. 330 g
Display Display device STN color LCD
Resolution 320 (W) x 240 (H) dots
Display color 256 colors
Displayable area 98.0 (W) x 74.0 (H) mm
Backlight White LED backlight *No need for replacement
Functions Font types Fixed (GTWIN) : 8 x 8, 16 x 8, and 16 x 16 dots Characters can be displayed in the 1, 2, 4, or 8 times width or height.
TrueType (GTWIN): 10, 12, 14, 16, 24, 26, 28, 32, 36, 48, and 64 Windows (R): 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 32, 36, 48, and 64
Languages Japanese, English, Korean, German, French, Spanish, Italian, Simplified Chinese, Traditional Chinese, Turkish
Graphics Straight lines, continuous straight lines, squares, circles, ovals, arcs, elliptic arcs, fan shapes, elliptic fan shapes, beveled squares, bitmaps
Number of screens Approx. 250 screens*2
Screen No. that can be set Base screens: No. 0 to 3FF, Keyboard screens: No. 0 to 7
Part functions Messages, lamps, switches, data, bar graphs, clocks, keyboards, line graphs, and alarm list parts
Other functions Recipe, flow display, write device, alarm record, alarm list, and language switching
Clock function Provided with a built-in clock function. (Can also refer to and display a PLC clock.) *Buy a commercially available battery.
Contrast adjustment Contrast can be adjusted by using the touch panel.
Automatic communication settings The communication conditions of dedicated software and PLC can be automatically set by connecting a cable.
Debugging function GT connected between a PC and PLC allows the PLC to be debugged without a direct connection with the PC.
Screen creation Dedicated software should be used. Applicable OS: Windowsョ 95 (OSR2 or later)/98/Me/2000/NT/XP
Touch key resolution Free layout (8 dots min)
Touch key operation force 0.8 N max.
Touch key life 1 million operations min
COM. port Communication standard Conforms to RS232C Conforms to RS422
External communication conditions Baud rate: 9,600/19,200/38,400/57,600/115,200 bps
Data bits: 7 or 8 bits
Parity: None, Odd, Even
Stop bits: 1 bit
Protocol Our FP series supported/General-purpose serial interface supported/Other companies' PLC supported (Refer to the compatible PLC list for manufacturers and models.)
Connector Connector terminal base (8 pins)
Screen data transfer interface Communication
Tool port (Conforms to RS232C)
Communication conditions with personal computers Baud rate: 9,600/19,200/115,200/230,400 bps*3
Data bits: 8 bits
Parity: None, Odd, Even
Stop bits: 1 bit
Protocol Our dedicated protocol
Connectors 5-pin mini-DIN
Ethernet port -
*1 When the unit is being installed in a horizontal orientation or FP programmer&2 is being connected to the TOOL port, the usable range is 0 to +45 °C
*2 The number of screens that can be registered varies according to the registered contents.
*3 A USB/RS232C conversion cable should be used to achieve a communication speed of 230,400 bps. When the TOOL port of GT is set to 230,400 bps, the auto communication setting function of GTWIN cannot be used. Set the communication speed to 230,400 bps on GTWIN before transferring data.

Conformance to the UL/cUL standards

UL/cUL file No. UL Standard No.
E96300 UL508


Screen data and GTWIN configuration setting data

Item specifications
User's memory F-ROM
Memory capacity 6.5 Mbyte

Clock data, PLC device storage data (24 words max.) and Alarm record data

Item specifications
Memory SRAM
Memory backup Lithium battery (replaceable)
CR2032, commercially available *Not included. Buy it separately