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该模块属于 S7-300 标准信号模块(SM),用于将工业现场的按钮、接近开关、限位开关、传感器等 24V DC 数字信号,转换为 PLC 可识别的逻辑 0/1 电平,实现外部设备状态与 PLC 控制系统的可靠交互。订货号 6ES7321-1BL00-0AA0,标准 DIN 导轨安装,适配 S7-300 全系 CPU(如 CPU313、314、315 等),通过背板总线与 CPU 通信,无需额外通信接口,集成度高、部署便捷。


该型号已逐步停产,主流替代型号为6ES7321-1BL00-4AA1(功能、通道、电气参数完全一致,仅工艺优化),或升级至 S7-1500 系列对应 DI 模块,用户可根据项目需求选择兼容替代方案,保障系统持续运行。
150-F108NBD??
ATS48C17Q?
BMH0701T26F1A–1?
BMH0702T26F1A–1?
BMH0702T16A1A–1?
BMH0703T26F1A–1?
ACS800-01-0050-3+P901??
6ES7315-2AH14-0AB0??
6GK7243-5DX30-0XE0?
6ES7215-1AG40-0XB0?
6ES7222-1HH32-0XB0??
6ES7232-4HD32-0XB0??
6SL3210-1KE14-3AF2??
TM208LDA40DRN??
NW20H1 48287
1MBI300SA-120B-52??
ES500-9661??
MVI56-PDPMV1?
8.KIS40.1362.2000??
DOP-W127B?
FR-E840-0026-4-60??
GYS751DC2-T2C?
6EP1437-3BA10? ?
A97L-0218-0952#120??
SGD7S-1R6A00A002??
SGD7S-180A00A002
PSTX170-600-70??
170INT11000?
170ADO74050??
6EP3436-8SB00-0AY0?
3RW3038-1BB04??
6EP1322-2BA00??
6GT2891-4FN10?
6GK1562-3AA00??
6AV2124-0QC02-0AX2??
6ES7517-3FP00-0AB0??
6AV2124-1DC01-0AX0?
6EP1436-3BA00??
6ES7963-3AA00-0AA0??
6SE6440-2AD23-0BA1??
6SE6440-2AD24-0BA1??
6SE6440-2AD25-5CA1??
6SE6440-2AD22-2BA1?
6SE6440-2UD22-2BA1??
6SE6440-2AB21-5BA1??
6SE6440-2AB15-5AA1??
6SE6440-2UD21-1AA1
6SE6440-2UD21-5AA1??
6AV2123-2GB03-0AX0?
6AV2123-2JB03-0AX0??
6SL3210-5BE17-5UV0?
6ES7321-1BL00-0AA0??
PCI-8430/16??
EPALM10-DA71??
ETC750011.B??
1SVR011718R2500??
330907-05-30-10-02-00?
1783-USP2S6T??
9905-971??
1734-IB8?
1734-OB8?
140CPU67160?
FCP270?
RH916TA?
6SL3420-2TE11-7AA1
NI9425?
cDAQ-9174?
CP306
CP390?
6GK1503-3CC00?
OVS-24J-UC?
KL5001?
KL1809?
BX3100-0000?
CX1500-M310?
CX1020-0011?
CX1100-0002?
HMIGTO5310?
6ED1052-1FB08-0BA0?
6ED1055-1FB00-0BA2?
6ED1055-1MA00-0BA2?
6ED1055-4MH00-0BA1?
6ES7214-1AE30-0XB0?
MLP50?
MSP50?
MAO50?
MAI50?
1SVR427036R0000?
PSR25-600-70?
1763-NC01?
P0926GW
XBTGT7340?
ATV320U07M2C?
2085-IA8
2905743?
IC695ALG616?
MAI51?
MDI50?
MVP50?
BLP50
1756-IB32?
1756-OB32?
1756-IF16?
1756-OF8?
1756-A13?
1756-TBCH?
1756-TBNH?
6RA8081-6DV62-0AA0?
7MH4950-2AA01?
FR-D720-042-NA?
700-TBR224?
700-HLT1Z2?
5069-ECR?
5069-AENTR?
DX80DR9M-H?
UT71E?
WATSN-630/630/4A? ? ?
WATSN-630/400/4A? ? ? ?
WATSN-250/250/4A? ? ? ?
2711R-T10T?
2080-PS120-240VAC
2080-LC50-24QWB?
2080-OW4I?
2085-IF4 1?
22D-D4P0N104?
20AC8P7A0AYNANC0?
6SE7038-6GL84-1JA1?
CP10.241?
1756-L71?
1756-A7?
1756-N2?
1756-PB72?
1756-OB16D?
1756-IF8 2500
2711P-T15C21D8S?
842E-CM-SIP12BA
51452845-501?
51452822-502?
M700-054 00300A?
RES-5010?
6ES7223-5BH50-0XB0?
6GK5005-0BA10-1AA3?
6ES7214-1AH50-0XB0?
6SL3210-1KE11-8AF2?
6ES7593-8LG31-0AA0?
TSX1723428?
1786-BNC
1784-PKTXD?
20-750-MI4-C585D617?
3BSM000248-1
3BSM000249-1
1775K-PMPP-1700?
NA5-15W101B-V1
NA5-12W101B-V1-P?
NS15-TX01B-V2?
CJ1W-CIF11?
Mitsubishi FR-CC2-H630K-60 2?
Mitsubishi FR-A842-12120-2-60 2?
Mitsubishi FR-A840-00083-2-60 2??
6ES7 214-1AG40-0XB0?
6ES7 231-4HD30-0XB0?
6ES7 232-4HB30-0XB0?
6ES7 214-1AG40-0XB0?
6ES7 231-4HD30-0XB0?
6ES7 232-4HD30-0XB0?
DDI3725
DDO3705?
8BVF0220H000.000-1?
8BVF0440H000.001-2
1769-IT6?
1746-P4?
1746-IM16
1746-OA16?
1784-PCIC?
1203-CN1?
1747-SN?
6ES7 972-0BB12-0XA0
KJ2005X1-MQ2?
3HAC029034-004?