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下圖PLC那個(gè)是連接PC的通訊端口？
這個(gè)PLC電池沒(méi)電了程序會(huì)丟失嗎？
求大佬們解答

這個(gè)是我出道之時(shí)的高端古董！如果是歐版的可有DOS版軟件支持（2000、XP系統(tǒng)）。那個(gè)長(zhǎng)條蓋板里面的就是手持編程器接口，邊上那個(gè)方口是擴(kuò)展內(nèi)存卡槽。

The CPU is equipped with one connector for peripheral devices. A peripheral
device, such as the CPU-Mounting Programming Console, can be mounted
directly to the CPU and does not require a connecting cable. To mount the
CPU-Mounting Programming Console or any other peripheral device directly
to the CPU, follow these steps:
1. Detach the cover of the peripheral device connector with a standard
screwdriver.
2. Connect the CPU-Mounting Programming Console to the peripheral device
connector.
3. To ensure a positive connection, secure the Programming Console to
the CPU by tightening the mounting screws located on the surface of the
CPU.