 
                                         
                                         
                                         
                                         
                                    Model no
SR20XPArticle No
E3 288-1SR20-XPA1Description
Standalone CPU SR20XP,4 inputs and 3 outputs with analog signals, RelayDimensions WxHxD(mm)
110×100×81mmI/O
12DI/8DO/4AI/3AO| Specification parameters | Model no | E3 CPU SR20XP | 
| Article No | E3 288-1SR20-XPA1 | |
| Description | Standalone CPU SR20XP Relay,12DI/8DO/4AI/3AO,1*RJ45,2*RS485,No extension support | 
| Conventional norm | Dimensions WxHxD(mm) | 110×100×81mm | 
| Power Consumption | 10W | |
| Available current(SM bus) | - | |
| Available current(24V DC) | max.300mA | 
| CPU Features | Program Memory (KB) | 18 | 
| Data Memory (KB) | 12 | |
| Retentive Memory (KB) | 10 | |
| Data Preservation | permanent | |
| Built-in I/O | ||
| Digital Input/Output | 12 input /8 output | |
| Analog Input/Output | 4 input /3 output | |
| Process Image Size | 256-bit input (I)/256-bit output (Q) | |
| Analog Image | 56 words input (AI) 56 words output (AQ) | |
| Expansion Modules Allowed | - | |
| High speed counter (total) | 4 in total | |
| .Single Phase | 4x50KHz(HSC0-3) | |
| .Quadrature Phase | 1x30KHz(HSC0) | |
| Pulse output | - | |
| Timer | Non-holding (or not retained) (TON, TOF):192 Holding (or retained) : 64 | |
| Counters | 256 | |
| Bit memory(M) | 256 bits | |
| Cycle Interrupt | 2 in total, T32 and T96 have a resolution of 1ms | |
| Interrupt Edge | 4 up and 4 down | |
| Real Time Clock | - | |
| Memory card | support | |
| Signal expansion boar | - | 
| Performance/ Processing Time | .Boolean | 0.35uS/instruction | 
| .Moving Word Operations | 1.2uS/instruction | |
| .Floating Point | 1.7uS/instruction | 
| Communications Built-in | Ports | Ethernet: 1 Body serial port: 2(DB9-RS485) | 
| HMI Connections | Ethernet: 5 connections Serial port: 4 connections | |
| Programming (PG) | 1 connection | |
| Ethernet | ||
| CPU(PUT/GET) | Share 5 connections | |
| Open type communication | ||
| Data Transmission rate | Ethernet:10/100 Mb/s; RS485 System Protocol:9600,19200 and 187500 b/s; RS485 free port:1200 to 115200 b/s | |
| Isolation | Ethernet:Transformer isolation,1500VDC; RS485:None | |
| Cable type | Ethernet:CAT5e Shielded cable RS485:PROFIBUS Network cable | 
| Power | Input Voltage | 85-264VDC | 
| Input current(CPU only) | 130mA(w/o 300mA power supply output of the sensor)when CPU only at 120V AC 250mA(w/ 300mA power supply output of the sensor)when CPU only at 120V AC 80mA(w/o 300mA power supply output of the sensor) when CPU only at 240V AC 150mA(w/ 300mA power supply output of the sensor)when CPU only at 240V AC | |
| Input current(Includes CPU and all expansion accessories) | 300mA at 120VAC 190mA at 240VAC | |
| Inrush Current (Max) | 9.3A at 264VDC | |
| Sensor voltage | 20.4-28.8VDC | |
| Isolation | ||
| Input to logic | 1500VAC,1min | |
| Sensor to logic | Not isolated | 
| Digital Input | Number of Inputs | 12 | 
| Input type | The sinking /sourcing type(IEC type 1 sinking) | |
| Allowable Continuous Voltage | Max.30VDC | |
| Surge voltage(Max) | 35V DC, lasting 0.5s | |
| Logic 1 signal(Min) | 15V DC when the current is 2.5mA | |
| Logic 0 signal(Max) | 5V DC when the current is 1mA | |
| Optical Isolation (field side and logic side) | 500V AC lasting 1.0min | |
| Isolation group | 1 | |
| Filter time | Each channel can be separately selected : 0,6.4ms and 12.8ms | 
| Digital Output | Number of Outputs | 8 | 
| Output type | Relay, dry contact | |
| Voltage range | 5-30VDC or 5-250VAC | |
| Surge Current (Max) | 7A when power on | |
| Rated Current per each point (Max) | 2.0A | |
| Switching Frequency (Max) | Not recommended | |
| Turn-on delay(Qa.0-Qa.3) | Up to 10ms | |
| Turn-off delay(Qa.4-Qa.7) | Up to 10ms | |
| Optical Isolation (field side and logic side) | 500V AC lasting 1.0min | |
| Contact Lifetime | ||
| non-loaded | 10,000,000 cycles | |
| Rated load | 10,000 cycles | 
| Analog Input/Output | 4 analog inputs/3 analog outputs; | |
| Analog Input | ||
| Number of Inputs | 4 | |
| Input Type | Voltage or current: 2 can be selected as a group | |
| Input Range | current:0-20mA;Voltage:0-10V | |
| Resolution ratio | Voltage mode:12bits;Current mode:12bits | |
| Accuracy | Voltage mode:Full scale range±0.3%/±0.5%;Current mode:Full scale range±0.4%/±0.6% | |
| Analog-to-digital switching time | 50mS(50Hz) | |
| Analog Output | ||
| Number of Outputs | 3 | |
| Output Type | Voltage or current (configurable) | |
| Output Range | current:0-20mA;Voltage:0-10V | |
| Resolution ratio | Voltage mode:11bits;Current mode:11bits | |
| Accuracy | Voltage: 25 ° C: ± 0.5%; 0 ° to 55 °: ± 1.0% Current: 25 ° C: ± 0.6%; 0 ° to 55 °: ± 1.1% | |
| Diagnose | Upflow/underflow | |
| Cable length(max) | 100m,Shielded twisted pair | 

