13 CP620, CP630, CP635, CP651, CP661, CP665, CP676
Model CP651-x(-WEB) CP661-x(-WEB)
Display/Backlight TFT Color / LED TFT Color / LED
Colors 64 K 64 K
Resolution 800 x 600 800 x 600
Diagonal (inches) 10.4” 12.1“
Dimming Yes Yes
Touchscreen Yes Yes
User memory flash 256 MB 256 MB
SC card slot Yes Yes
Recipe memory Yes. Flash memory storage limited
only by available memory
Yes. Flash memory storage limited
only by available memory
Serial Port RS-232, RS-485, RS-422, DB9
female, software configurable
RS-232, RS-485, RS-422, DB9
female, software configurable
Ethernet port 2 x 10/100 Mbit/s
with integrated switch
2 x 10/100 Mbit/s
with integrated switch
USB port 2 x host interface,
1 version 2.0 and 1.1,
1 version 2.0
2 x host interface,
1 version 2.0 and 1.1,
1 version 2.0
Expansion slot for future
optional plugin modules
2 x 2 x
Battery Rechargeable Rechargeable
Real-time clock Yes Yes
Voltage 18 … 32 V DC *) 18 … 32 V DC *)
Current rating (at 24 V DC) 1 A 1.2 A
Weight 2.1 kg 2.8 kg
*) For applications not requiring compliance with EN 61131-2 and specifically in reference to 10 ms voltage
dips, the minimum power supply voltage is 10 V DC.