Product Details
Related Product Model Recommendations
Payment &Delivery
FAQs
Q1: What is the user memory capacity of the 1756-L72?
The 1756-L72 has 4 MB of user memory and 0.98 MB of I/O memory. The controller also includes a 1 GB Secure Digital (SD) card (1784-SD1) that provides non-volatile memory for program storage and data logging .
Q2: Does the 1756-L72 have built-in Ethernet or other communication ports?
No. Like all standard 1756-L7x series controllers, the 1756-L72 has only a USB 2.0 programming port built in. For network connectivity, you must install separate communication modules such as the 1756-EN2T (EtherNet/IP), 1756-CN2 (ControlNet), or 1756-DNB (DeviceNet) in the same chassis .
Q3: What software is required to program the 1756-L72?
The controller is programmed using Studio 5000 Logix Designer version 20 or later. Earlier versions of RSLogix 5000 may also support the controller depending on the specific revision. The controller requires firmware revision 20.012 or later .
Q4: Does the 1756-L72 require a battery for memory backup?
No. The 1756-L72 uses an Energy Storage Module (ESM), specifically the 1756-ESMCAP, instead of a traditional lithium battery. This eliminates battery maintenance and environmental disposal issues associated with lithium batteries . The 1 GB SD card also provides non-volatile storage for program backup .
Q5: What is the difference between the 1756-L72 and the 1756-L72S?
The 1756-L72 is a standard ControlLogix controller for non-safety applications. The 1756-L72S is a GuardLogix safety controller that provides 4 MB of standard memory plus 2 MB of safety memory, enabling integrated safety functions up to SIL 3 and PLe in addition to standard control.
