描述
数据存储区，用以存储工作数据。多以字、两字或多字为单位予以使用，是PLC进行模拟量控制，或记录数据所必不可少的。这个存储区的大小代表PLC的性能也是越大越好。趋势也是越来越大。小型机也如此。如日本OMRON公司的CQM1机，其DM区就有6k字。而过去同是小型机的C60P的DM区才64个字。大型机的DM可达10K以至几十K。
SYMBOL, MOTOROLA 4 SLOT CRADLE WT4090, WT4070 ETHERNET
SYMBOL MOTOROLA LS4208-SWZU0100ZR LS4208 WHITE SCANNER
SYMBOL MOTOROLA LS4208-SBZU0100ZR LS4208 BLACK SCANNER
Motorola Symbol Barcode Scanner PDT3416 New 3416
Motorola Symbol MC9063-S Barcode Scanner Verizon *New*
NEW Motorola Symbol LS 4208 Bar Code Reader
Expedited shipping available
SYMBOL MOTOROLA LS4208-SBZK0200Z KIT: KEYBOARD PS/2, 9F
SYMBOL MOTOROLA LS9203-SR11007NSWR LS9203I:HF STAND,TWL
SYMBOL MOTOROLA LS4208-SBZU0100ZR LS4208 BLACK SCANNER
SYMBOL MOTOROLA LS4208-SWZU0100ZR LS4208 WHITE SCANNER
NEW Motorola Symbol LS 4208 Bar Code Reader
Expedited shipping available
SYMBOL MOTOROLA LS4208-SWZK0100ZR LS4208 WHITE SCANNER
