Characteristics of ACE and eACE PLCs
| Power | ||
| Voltage | 5 – 28 VDC via a two position pluggable connector Or via USB port 4.75 – 5 VDC for the old version Read more | |
| Current | 300 mA maximum. < 100 mA typical 40 mA continuous with a small programme running |
|
| Digital Inputs | ||
| Type | DC voltage input | |
| Input range | 3 to 30 VDC | |
| Internal pull down to ground | 10 Kohms | |
| Input low (or 0) signal | 0 to 0.8V, or open connection | |
| Input high (or 1) signal | 2.5 to 30VDC | |
| Pulse counter input frequency | up to 100 KHz (typical) | |
| up to 250 KHz (maximum) | ||
| Program selectable debounce | 0 to 255 milliseconds | |
| Digital Outputs | ||
| Type | Sinking transistor | |
| Voltage range | 3 to 30VDC | |
| Current | 300 mA maximum | |
| Motion output pulse frequency | 0 to 250 KHz (maximum) | |
| PWM resolution / Periode | 1 microsecond / 100 to 65535 microsecond Period < 1000 : One PWM output will be active Period >= 1000 : All PWM outputs are active | |
| Off state pull up resistance to VO | 33 Kohms | |
| Analog Inputs | ||
| Type | ACE v5 = 0 to 5 VDC | |
| ACE v10 = 0 to 10 VDC | ||
| ACE c = 0 to 20 mA | ||
| Resolution | 12 bit | |
| Analog Outputs | ||
| Types | Selectable ; 0-5 V, 0-10 V | |
| Resolution | 16 bit | |
| Thermocouple / Differential Voltage Inputs | ||
| Types | Selectable ; J, K, T and N | |
| +/- 0.256V, +/- 0.512V, +/- 1.024V, +/- 2.048V | ||
| Output value | Floating point value in degrees C or F | |
| Communications | ||
| USB Device – mini USB connector | Programming, Power Supply and Modbus Slave | |
| RS232 | 3 wire (TX, RX and ground). Modbus Slave | |
| RS485 | 2 wire. Modbus Slave | |
| Baud rates / parity / stop bits | Baud rate selectable. 9600 bds to 115000 kbs. | |
| Physical Dimensions | ||
| 63.5 * 63.5 * 12.7 mm | ||
| Environmental | ||
| Operating temperature | -40 to +85C | |
| Humidity | 0 to 95% non-condensing | |
| MTBF: Mean Time Between Failures | 4.153x 108 hours | |
| FIT: Failures-in-Time | 2.41 failures per 1E9 device-hours | |
| Software Specifications : Application Program Limits | ||
| PLC cycle rate | 5 to 1 logic scans per millisecond, depending on how big the program is. | |
| Program Memory | 34 K Word | |
| Maximum rungs or function blocks | 4 K | |
| Maximum # Subroutines | 68 | |
| Maximum Tagnames | 950 | |
| Main Program data memory | Bits 2,048 unsigned 8 bit integers 512 unsigned 16 bit integers 512 signed 16 bit integers 512 signed 32 bit integers 256 floating point numbers 256 | |
| Object Memory | object words 4,096 object bits up to 65,536 object 8 Off integers up to 8,192 object signed 16 bit up to 4,096 object unsigned 16 bit up to 4,096 object signed 32 bit up to 2,048 object floating point up to 2,048 | |
| Maximum # objects | 292 | |
| Maximum # PWM outputs | all digital outputs | |
| Maximum # of Stepper Motion Controls | 3 | |
| Maximum Stepper Motion speed | 250 KHz | |
| Terminal Block Connections | ||
| Terminal type | Socket connectors and Spring cage capture plug | |
| Terminal spacing | 2.50 mm | |
| Wire section | 0.10 – 0.50 mm2 | |