CPU ST20

Model no

ST20

Article No

H7 288-1ST20-0AA0

Description

CPU ST20 Standard CPU transistor

Conventional norm	Dimensions WxHxD（mm）	90×100×81mm
	Power dissipatio	20W
	Available current（SM bus 5V）	1400mA
	Available current（Sensor power 24V）	300mA

CPU specification	program storage (kb)	12
	Data storage(kb)	8
	Retention memory（kb)	10
	Data preservatio	permanent
	Ontology integrated I/O
	Digital value	12AI/8AO
	Analog valu
	Process image size	256-bit input (I)/256-bit output (Q)
	Analog mappin	56 words input (AI) 56 words output (AQ)
	Maximum number of I/O module expansions	Up to 6 extensions
	High speed counter (total	6
	Uniphas	4pcs 200KHz+2pcs 30KHz
	Orthogonal phas	2pcs 100KHz+2pcs 20KHz
	Pulse output	2pcs 100KHz
	time	Non-retention （TON,TOF):192;Retainability：64
	Counter count	256
	Bit memory（M）	256
	Time brea	Two in total, the T32 and T96 have a resolution of 1ms
	Edge brea	Four rising edges and four falling edges
	Cloc	Usually 7 days, at least 6 days at 25°C
	Memory card	support
	Signal expansion boar	-

Performance

Booleans’ operation time

0.35uS/order

Word transfer time

1.2uS/order

Floating point operation time

1.7uS/order

Communication	interface	Ethernet：1;Serial port：1（RS485）;Ethernet attached serial port：0;
	HMI equipmen	Ethernet：5 Connect; Serial port：4 Connect
	Programming devic	1Connect
	Etherne	UPload and Download program：support；Touch screen upper computer communication：support；MODBUS TCP
	CPU（PUT/GET）	Network command support other products PUT/GET This product, a maximum of 5 hosts, support this product PUT/GET other products
	Data transfer rate	Ethernet：10/100 Mb/s；RS485 System Protocol：9600,19200和187500 b/s；RS485 free port：1200到115200 b/s
	isolate	Ethernet：Transformer isolation，1500VDC;RS485：no
	Cable type	Ethernet：CAT5e Shielded cable RS485：PROFIBUS Network cable

Power supply	Voltage range	20.4-28.8VDC
	Input current（CPU only）	190mA at 24V AC (without 300mA sensor power output) 470mA at 24V AC (with 300mA sensor power output)
	Input current（Includes CPU and all expansion accessories）	680Ma at 24VAC
	Impulse curren	11.7A at 28.8VDC
	Sensor voltag	20.4-28.8VDC
	Power isolation
	Power input and logi	Unisolated
	Sensor power and logic	Unisolated

Input	Input points	12
	Input type	Drain type/source type(IEC Class 1 leakage type, except I0.0 to I0.3)
	Maximum continuous allowable voltage	30VDC
	Surge voltage	35VDC，0.5S
	Logic 1 signal	I0.0 to I0.3, I0.6 to I0.7: 4V DC at 8mA Other inputs: 15V DC at 2.5mA
	Logic 0 signal	I0.0 to I0.3, I0.6 to I0.7: 4 V DC at 1 mA Other inputs: 5 V DC at 1 mA
	Photoelectric isolation（Field side and Logic side）	500VAC for 1 minute
	Isolation group	1
	Filtering time	Each channel can be individually selected (points I0.0 to I1.3): 0.2, 0.4, 0.8, 1.6, 3.2, 6.4, and 12.8us; 0.2, 0.4, 0.8, 1.6, 3.2, 6.4, and 12.8ms

Output	Output points	8
	Output type	Solid state MOSFET (source type)
	Voltage range	20.4-28.8VDC
	Surge voltage	8A for up to 100ms
	Rated current for each point	0.5A
	Switching frequency
	Turn-on delay（Qa.0-Qa.3)	The maximum length from disconnection to connection is 1.0us; Up to 3.0us from on to off
	Turn-off delay（Qa.4-Qa.7)	The maximum length from disconnection to connection is 50us; Up to 200us from on to off
	Photoelectric isolation（Field side and Logic side）	500VAC for 1 minute
	Contact endurance
	non-loaded
	Rated load