| Model no | SR20 | |
Article No | E7 288-1SR20-0AG6 | |
Description | IoT CPU SR20 Electric Relay | |
Conventional norm | Dimensions WxHxD（mm） | 90×100×81mm |
Power dissipatio | 14W | |
Available current（SM bus 5V） | 1400mA | |
Available current（Sensor power 24V） | 300mA |
| CPU specification | program storage (kb) | 18 |
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 | ||
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 | Integrated DB 206 NG |
Performance | Booleans’ operation time | 0.35uS/order |
Word transfer time | 1.2uS/order | |
Floating point operation time | 1.7uS/order |
Communication | interface | Ethernet：1;RS485 port：2（DB9）;Additional DB board 485 interface：1（CM01）; |
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 | 85-264VDC |
Input current（CPU only） | 130mA at 120VAC (without 300mA sensor power output) 250mA at 120VAC (with 300mA sensor power output) 80mA at 240VAC (without 300mA sensor power output) 150mA at 240VAC (with 300mA sensor power output) | |
Input current（Includes CPU and all expansion accessories） | 300mA at 120VAC 190mA at 240VAC | |
Impulse curren | 9.3A at 264VDC | |
Sensor voltag | 20.4-28.8VDC | |
Power isolation | ||
Power input and logi | 1500VAC,1min | |
Sensor power and logic | Unisolated |
| Input | Input points | 12 |
| Input type | Drain type/source type(IEC Class 1 leakage type) | |
| Maximum continuous allowable voltage | 30VDC | |
| Surge voltage | 35VDC，0.5S | |
| Logic 1 signal | 15VDC at 2.5mA | |
| Logic 0 signal | 5VDC at 1mA | |
| 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 | Relay, dry contact | |
| Voltage range | 5-30VDC or 5-250VAC | |
| Surge voltage | The contact is 7A when it’s closed | |
| Rated current for each point | 2.0A | |
| Switching frequency | Not recommended | |
| Turn-on delay（Qa.0-Qa.3) | Max 10ms | |
| Turn-off delay（Qa.4-Qa.7) | Max 10ms | |
| Photoelectric isolation（Field side and Logic side） | 500VAC for 1 minute | |
| Contact endurance | ||
| non-loaded | 10,000,000 disconnect/close cycles | |
| Rated load | 10,000 disconnect/close cycles |
