Description / توضیحات
Model 1756-L72
User memory 4 MB
I/O memory 0.98 MB
Optional nonvolatile memory storage 1 GB (1784-SD1 ships with every controller)
2 GB (1784-SD2)
Digital I/O, max 128,000
Analog I/O, max 4000
Total I/O, max 128,000
Energy storage module
1756-ESMCAP capacitor energy storage module (removable, ships installed with every controller)
1756-ESMNSE capacitor energy storage module (removable, no residual WallClockTime power backup)
1756-ESMNRM capacitor energy storage module (nonremovable, secures controller by preventing USB connection an d SD card use)
Current draw @ 1.2V DC 5 mA
Current draw @ 5.1V DC 800 mA
Power dissipation 2.5 W
Thermal dissipation 8.5 BTU/hr
Isolation voltage 30V (continuous), basic insulation type, USB port-to-system
Type tested at 500V AC for 60 s
USB port¹ USB 2.0, full speed (12 Mbps)
Weight, approx 0.25 kg (0.55 lb)
Slot width 1
Module location Chassis-based, any slot
Wire category²
3 - on USB port
North American temperature code T4A
IEC temperature code T4
Enclosure type rating
None (open-style)
The USB port is intended for temporary local programming purposes only and not intended for permanent connection. Do not use the USB port in hazardous locations.
Use this conductor category information for planning conductor routing as described in the system level installation manual.
