Specific expansions

The SIMATIC S7-200 system also provides expansion modules to handle functions such as precise temperature measurement, positioning, and weighing tasks.

RTD-module EM 231

	RTD-EM 231	Order number
	Analog input module RTD, 2 AI, PT100/200/500/1000, Ni100/120/ 1000, Cu10, resist. 150/300/600 ohm, 16 bit	6ES7 231-7PB22-0XA0
	Technical data

Thermocouples module EM 231

	TC-EM 231	Order number
	Analog input module TC, 4 AE, ± 80 mV and thermocouplese, type J, K, S, T, R, E, N, 16 bit	6ES7 231-7PD22-0XA0
	Technical data

Positioning module EM 253

	EM 253	Order number
	Positioning expansion module (EM), 200 kHz, for controlling stepper motors or servo drives, open-loop control, parameterization via Micro/WIN	6ES7 253-1AA22-0XA0
	Technical data