Siemens SIMATIC User Manual

Digital modules
3.6 Digital input module SM 321; DI 64 x DC 24 V, sinking/sourcing; (6ES7321-1BP00-0AA0)
S7-300 Module data
68 Manual, 06/2017, A5E00105505-AJ
Using the module in S7-300 and ET 200M
If the station is configured with STEP 7, you can use the SM 321 digital input module with all
CPUs in the following tables. Startup cannot be performed if no configuration is loaded.
C-CPUs (compact CPUs)
Order number
CPU 312C
6ES7312-5BD0x-0AB0
6ES7312-5BE03-0AB0
6ES7312-5BF04-0AB0
CPU 313C
6ES7313-5BE0x-0AB0
6ES7313-5BF03-0AB0
6ES7313-5BG04-0AB0
CPU 313C-2 DP
6ES7313-6CE0x-0AB0
6ES7313-6CF03-0AB0
6ES7313-6CG04-0AB0
CPU313C-2 PtP
6ES7313-6BE0x-0AB0
6ES7313-6BF03-0AB0
6ES7313-6BG04-0AB0
CPU 314C-2 DP
6ES7314-6CF0x-0AB0
6ES7314-6CG03-0AB0
6ES7314-6CH04-0AB0
CPU 314C-2 PtP
6ES7314-6BF0x--0AB0
6ES7314-6BG03--0AB0
6ES7314-6BH04-0AB0
CPU314C-2 PN/DP
6ES7314-6EH04-0AB0
M-CPUs
Order number
CPU 312
6ES7312-1AD1x-0AB0
6ES7312-1AE13-0AB0
6ES7312-1AE14-0AB0
CPU 314
6ES7314-1AF1x-0AB0
6ES7314-1AG13-0AB0
6ES7314-1AG14-0AB0
CPU 315-2 DP
6ES7315-2AF0x-0AB0
6ES7315-2AG10-0AB0
6ES7315-2AH14-0AB0
CPU 316-2 DP
6ES7316-2AG00-0AB0
CPU 317-2 DP
6ES7317-2AJ10-0AB0
6ES7317-2AK14-0AB0
CPU 315-2 PN/DP
6ES7315-2EG10-0AB0
6ES7315-2EH13-0AB0
6ES7315-2EH14-0AB0
CPU 317-2 PN/DP
6ES7317-2EJ10-0AB0
6ES7317-2EK13-0AB0
6ES7317-2EK14-0AB0
CPU 319-3 PN/DP
6ES7318-3EL00-0AB0
6ES7318-3EL01-0AB0

Siemens SIMATIC Specifications

General

Product type designation	SIMATIC
CPU	Varies by model
Memory	Varies by model
Input/Output	Varies by model
Communication	Varies by model
Programming Language	STEP 7
Operating Temperature	0°C to 60°C (varies by model)
Protection Class	IP20
Category	Programmable Logic Controller (PLC)