Generally, “floating point error” refers to when a number cannot be stored in the IEEE floating point representation. Integers are stored with the right-most bit being 1, and each bit to the left being double that (2,4,8,…). It’s easy to see that this can store any integer up to 2^n, where n is the number…
When making any changes to the RW memory area, the changes are stored in RAM memory initially and after 60 seconds, written to permanent flash memory. Therefore, when testing the RW memory, make sure you wait at least 60 seconds before cycling power on the HMI or the changes will not be saved permanently. Here…
Read More RW Memory is not saved after cycling power on the HMI
Numeric objects in EBPro have the option of using a Macro subroutine to scale the value displayed from the actual value stored in the read register. First, open the properties of the numeric object and navigate to the Format tab. Take note of the Device data format. The Macro subroutine must have the same data…
Read More Scaling a Numeric Display Object using a Macro subroutine
To address multiple devices, using the Modbus TCP/IP Gateway function: 1. Select the table for the mapped device. 2. Click the “Settings…” button at the bottom of the Address Mapping Table window. 3. Specify the mapped device address in the Table Settings window. Follow Technical Note 5099 “Using the Modbus Gateway” for step-by-step instructions.
Read More How do I address multiple devices using the Modbus TCP/IP Gateway function?
To display historical trend data within the Trend Display Object, you will first need to configure the indexed Data Sampling Object to enable the saving of the sampled data to History Files. The Sampled Data can be saved to HMI memory or USB disk. Once the indexed Data Sampling object has been configured to save…
These products are discontinued. Contact [email protected] for upgrade information. The Utility Manager application that comes bundled and installed with EBPro, features a Firmware upgrade utility for the cMT-iV5 and iV6. The Utility Manager application is located in the root of the EBPro installation directory. By default, it is installed in C:Maple SystemsEBProUtilityManagerEx.exe. You will need…
Read More How do I update the Firmware on a cMT-iV5 and/or a cMT-iV6?
When connecting to your cMT–X Series through EasyWeb, you are able to export data logs, event logs, and operation logs as well as make backups of the database directly to your PC. To connect via EasyWeb, enter the IP address of the cMT-X Series in your browser’s URL (the default System password is: 111111). Click on the “Data” tab in the menu on the left side of EasyWeb and then…
UDP (User Datagram Protocol) is a communications protocol that is primarily used for establishing low-latency and loss-tolerating connections between applications on the internet. It speeds up transmissions by enabling the transfer of data before an agreement is provided by the receiving party. As a result, UDP is beneficial in time-sensitive communications, UDP is an alternative…
As of EBPro v6.05.02, the SQL query command limit will allow up to 2000 characters.
Read More How many characters are allowed in an Advanced SQL Query command?
There are no macro instructions that allow a macro to directly interface with table data in a SQL database. The data would need to be copied from the database into local HMI memory before it can be accessed by the macro, which is tedious if large amounts of data need to be manipulated. It is…
Read More Interfacing with an SQL database table: the SQL Advanced Query Object vs. Macro
The recipe data can be exported as a .db file, from within the Recipe Database manager in EBPro. The exported recipe database can be opened in your preferred database browser to browse and/or update the recipe data tables. The updated recipe database can then be imported again, from within the Recipe Database Manager in EBPro.
Read More How do I export, edit and import the Recipe Database in EBPro?
When creating a New Meter Display Object for a cMT Series HMI, you may not be able to assign a negative value for the minimum or maximum values when using REAL, DINT, or INT signed data types. Solution: First, select a Local Word (LW) register for the Read Address in the Meter Display Object Properties…