The 1761-HHM-K64 is an Allen-Bradley Hand-Held Programmer memory module. This module is used incompatible with the MicroLogix Hand-Help Programmer (HHP) with catalog number 1761-HHP-B30. This memory module provides the non-volatile storage area, amounting to 64 Kbytes that is capable of storing up to Eight (8) user programs. The 1761-HHM-K64 is a cartridge-type module installed in the memory slot of the HHP. This memory slot is accessed after the removal of the memory module door. It comes with female sockets that are directly inserted into the male memory sockets available to the HHP. When installing this module, the host HHP must be disconnected to the partner controller or completely powered down otherwise, the risk of damaging the memory module due to electrical arcing and corruption of the stored program may occur. Attach the module to the connecting sockets by aligning the pins and applying gentle force. If unusual resistance is felt, detach the module and inspect if the sockets are aligned. After setting the memory module into place, cover the module with the HHP memory module door. When handling the 1761-HHM-K64, avoid touching the insertion points of the module. Hold the device by the edges or via the plastic areas or non-conductive areas of the module. In addition, temporary rest the module on flat surfaces with anti-electrostatic pads or plastic. Avoid exposure to industrial contaminants such as oil, corrosive gas, and high-temperature to prevent damage to the device. The 1761-HHM-K64 provides a portable and removable storage mechanism as it supports removal and installation to different HHPs.

The Allen-Bradley 1761-HHM-K64 is a MicroLogix 1000 handheld memory module (HHM). The module is used with the hand-held programmer. The 1761-HHM-K64 has a memory capacity of 64 kilobytes and it can store up to 8 programs. Before inserting the 1761-HHM-K64 on the handheld programmer, the power to the programmer should first be disconnected. This prevents the controller from faulting and it also prevents possible damage to the 1761-HHM-K64. To further safeguard the memory module, it should be handled by the ends of the carrier or the edges of the plastic housing. Note that dirt and or oil from bare hands are capable of forming a layer on top of electrical components and minimizing the electrical contact. Being a memory module, the 1761-HHM-K64 is highly sensitive to electrostatic charges. These charges can either alter or destroy the memory module. When installing the 1761-HHM-K64 in the hand-held programmer, first disconnect the programmer from the controller, remove the memory module door, place the 1761-HHM-K64 in its socket, replace the module door, and either reconnect the controller to the power source or reconnect the HHP power cable. To use the 1761-HHM-K64 on a hand-held programmer, the users must first access it from the programmer’s interface. Once it is accessed, the users can load one of the stored programs from the memory module to the controller, store a program from the controller to the 1761-HHM-K64, or they can clear a program in the module. The 1761-HHM-K64 displays a confirmation screen when the users attempt to store a program in the module that has the same name as a program that is already stored in the module.

1. What is the memory size available to the 1761-HHM-K64?

The 1761-HHM-K64 has 64 KB memory.

2. How many programs can be saved to the 1761-HHM-K64?

Up to Eight (8) programs can be stored to the 1761-HHM-K64.

3. Does the 1761-HHM-K64 support insertion with the host programmer module connected to the controller?

No. The 1761-HHM-K64 must be installed when the Programmer module is disconnected and without power.