When an error (or failed transaction) is encountered, besides increasing the error counter, it is a good idea to print an indication that there was an error.
当遇到错误(或失败的事务)时，除了错误计数器的数量会增加外，最好标识出此处有错。
2
Large (. 25" high), easy to read 6-digit non-resettable totalizing counter. Provides precise indication of current consumed. Ideal for metal thickness control monitoring."