A introduction to our new product

HLP2B digital panel meters

The new product HLP2B has a broader application, its SCK pulse ranges from 3ms to several second even
several minutes.

HLP2B has the following advantages

1: High refresh frequency: it can take the PLC scanning period as the SCK clock pulse. If the refresh
period is 1.6 ms, then to refresh all four digits LED only needs 54.4ms.

2: It can adapt the SCK scanning frequency which changes frequently. Sometimes when PLC is running a
large program, the timer may be instable, however, HLP2B will not be influenced.

3: It can also be used in the relay output PLC. In some circumstance, such as when the refresh frequency
is not so high or low cost is the prerequiste or some other reasons making relay a necessity, we could
take advantage of the low speed SCK pulse of HLP2B. Further more, we can even pause some time after
sending a set of data, or refresh by means of querying manually, that is do not refresh without query so
as to lengthen the service life of the relay.

A example of the output of the relay: SCK timer two seconds, (2s*2)*17=68s that is to say 68 seconds to
refresh once.

Programming skills

Programming skills of PLC digital panel meters

Take OMRON PLC as an example to illustrate the method, other PLC can refer to this method.
there are five parts in the process of the programming.

1: generate clock pulse. "KEEP" is used to generate pulse according to the period of scanning in OMRON. Some PLC do not need such process, while they use the particular clock pulse generated by PLC.

2:send the data which need displaying to the data buffer and reset the control buffer. For example "MOV #1234" sends constant #1234 to the buffer 211. If you want to display a variable, you can send a particular buffer to buffer 211, and send the data to the particular buffer will make it.

3: "SFT" can move the data in four buffers from 209 to 212 one bit left and fill the vacancy at right wiht "1". It doesnot need resetting.

4: "SDA" is data output which satisfies the output of "sink" transistor, when it comes to the " source" transistor, it needs to revert.

5: "SCK" is the output of clock pulse which satisfies the "sink" transistor, when it comes to the " source" transistor, it needs to revert.
　　Only process 3 is needed to repeat to deal with the situation of bi-meters or multi-meters.

HLP2B Drivers download

1、HLP2B normal driver for PLC（Omron CXP）.

2、HLP2B fast driver for PLC（Omron CXP）.