Sigmatek ETV-0851 Control Panel Troubleshooting

Ethernet X4 is RJ45. When connecting the control panel to a third-party IP network, if there are a large number of broadcast or high-frequency messages in the network, it may cause excessive interruption load and trigger real-time operation errors. In engineering, packet filtering should be configured through firewalls or routers to restrict broadcast traffic entering the controller. The VARAN X5 is also RJ45 with a maximum length of 100 meters. When using VARAN for direct control of I/O modules, it is recommended to use CAT5e industrial Ethernet cables and S-FTP shielding structures. The shielding layer should be supported and grounded at the entrance to the control cabinet; The cable should be fixed within 20 cm of the connector to prevent vibration damage. If the bus is only routed between IP67 modules outside the cabinet, the module socket shielding is usually already connected internally to the housing; If noise sources such as drivers and transformers are located near the cabinet, shielding supports should be installed in front of electronic components; When two control cabinets are interconnected, shielding grounding should be done at the entrances on both sides.

Startup, battery, and microSD maintenance

The BIOS has been configured to boot the LASAL operating system from the SD card. The microSD card is used to store operating systems, applications, and application data. It is recommended to only use the storage media provided by SIGMATEK. The order number for the 512 MB EDGE microSD is 12-630-051. There are no specific limitations on card capacity and speed, but the number of reads and writes directly affects the lifespan. If the application frequently writes files or SRAM, the media life should be evaluated; When the user program writes files on microSD, the files must be stored at a fixed maximum length and cannot be resized while running, otherwise power failure may damage the file system.

RTC is maintained by a replaceable buffer battery, RENATA CR2032, 3.0 V/235 mAh, which can hold data for up to 7 years after power failure. To replace the battery, the ETV power supply must be disconnected. Use a PH-1 screwdriver to open the rear locking screw, lift the rear panel, and use a strap to remove the battery. The polarity direction of batteries in different hardware versions is different, and the positive electrode orientation must be confirmed according to the shell or hardware version identification. Reverse installation may cause the battery to heat up or be damaged. Only RENATA CR2032 can be used, non rechargeable, disassembled or put into fire. If there are frequent time zeroing, POINT ER or CHKSUM errors on site, in addition to program issues, the buffer battery should be checked for failure.

Troubleshooting ideas for status and error messages

The status and error messages of ETV-0851 will be displayed in the LASAL Class software status test, and POINT ER or CHKSUM may also be displayed on the terminal screen. Startup and runtime class errors can be investigated according to the following priority.

02 RUNTIME indicates that the total duration of all loop objects exceeds the maximum time. The remaining time and preset value can be observed through the Runtime and SWRuntime system variables. The solution is to optimize the loop task, reduce the task cycle, or choose a higher performance CPU. 03 POINT ER indicates that an incorrect program pointer was detected before running the user program. Common reasons include missing, unprogrammed, or damaged program storage modules, program non executable in RAM, buffer battery failure, or software errors overwritten by the user program. The storage module should be reprogrammed, and if it occurs again, the module should be replaced while checking the battery and programming errors. 04 CHKSUM stands for checksum error, and the troubleshooting direction is similar to POINT ER.

05 Watchdog indicates that the program is interrupted by watchdog logic, which is common in situations where the interrupt is blocked for a long time, STI instructions are forgotten, hardware interrupt programming errors occur, INB/OUTB/INW/OUTW is used improperly, or processor defects occur. Programming errors should be corrected first, and if they still occur, the CPU should be replaced. 17 INT ERROR indicates that the CPU triggered an error interrupt or encountered an unknown instruction, which is commonly seen in stack PUSH/POP quantity mismatch, software error interrupting the user program, and programming errors should be corrected. 67 REAL/TIME RUNTIME indicates that the total duration of all real-time objects exceeds the maximum time and cannot be configured through variables. Real time task RtWork should be optimized, object real-time task clock should be reduced, application errors should be corrected, and a higher performance CPU should be replaced when the real-time load is too high.

75 SRAM ERROR only appears on EDGE CPUs, indicating SRAM initialization, read or write errors. Possible reasons may include SRAM configuration errors, incorrect SD card format, or SD card unplugged. You should check Event00.rog, check the configuration, format the SD card as EDGE media using LASAL Class 2, and verify the SD card. 240 USV-WAIT indicates that the power supply is disconnected, the UPS is working, and the system is shutting down. The 24V power supply and UPS circuit should be checked. If there is a 44 VARAN MANAGER ERROR or a 45 VARAN ERROR, the logs and error tree should be checked to see if the VARAN client is disconnected, and if the terminal resistance and shielding grounding are normal.