How to comply with CFR 211 (FDA 21 CFR Part 11) when using a Maple Systems HMI

FDA 21 CFR Part 11, by Food and Drug Administration (FDA) of the US government, definesthe criteria under which electronic records and electronic signatures can be treated withsame degree of validity as paper-based records. Since the scope of FDA’s regulatoryauthority is very broad, Part 11 has an impact on all computer systems in life scienceindustry.…

Floating Point Rounding Errors

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…

Log4j Vulnerability

“Maple Systems HMIs are not affected by CVE-2021-44228, also known as Log4shell, and related vulnerabilities including CVE-2021-45046 and CVE-2021-45105. Users of Maple Systems HMIs do not have to take any further action.” Background Disclosed on December 9, 2021, CVE-2021-44228 is an Apache Log4j vulnerability which may allow remote code execution (RCE) on the target system…

What is the difference between a compiled project and a compressed project in EBPro?

An EBPro project file is saved with a *.emtp extension (*.cmtp for CMT Series). This is the development project that can be opened and edited in EBPro. Before you can download a project to an HMI, the project must be compiled. The compiler creates a new file with a *.exob (*.cxob for CMT Series). This…

Maple Systems HMI File Extensions

The software for Maple Systems HMI’s has changed and improved over the years, as such the file types and extensions have changed along with it. Below is a list of file extensions associated with the relevant software and HMI model series: HMI5000 Series models: *.emtp file – Working EBPro and EZwarePlus project file *.ecmp file – Compressed…

Why does my EasyAccess2.0 domain login web page look different?

The EasyAccess2.0 Domain web page has recently been redesigned. Upon navigating to account.ihmi.net/domain, the website redirects to the weincloud.net/account/login web page. You may notice a new user interface. You can use your existing credentials to log into the Weintek Cloud Service login page. From the new Weincloud Management web page, you can manage your Domain, Users,…

How do I address multiple devices using the Modbus TCP/IP Gateway function?

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. style=”width: 878px;” data-filename=”gateway.png”> Follow Technical Note 5099 “Using the Modbus Gateway” for…

How to Set the RTC in an HMC

There is a STARTUP demo project for the HMC models in the MAPware-7000/Projects folder (C:MapleSystemsMAPware-7000Projects) that can be used to set the Real-Time Clock (RTC) in the HMC. Open the “HMCxxxxA-M STARTUP.mpl” demo project for your particular model and download it to the HMC. Tap the startup screen to go to the next screen, then…

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