Catalogs > Automation Systems Catalog > I/O > In-Cabinet Distributed I/O > 1790/D/P CompactBlock LDX I/O
1790/D/P CompactBlock LDX I/O
| Introduction |  |
Product Design | |
Communication | |
Typical Configuration | |
Specifications | |
| Digital I/O Base Blocks | |
Analog I/O Base Blocks | |
Digital I/O Expansion Blocks | |
Accessory Products | |
For More Information | |
- Built-in DeviceNet (1790D) or PROFIBUS DP (1790P) I/O adapter and up to four I/O points.
- Each analog I/O base block supports up to two CompactBlock LDX expansion blocks.
- D-shell or screw-clamp I/O connectors.
- DeviceNet base blocks receive power from the DeviceNet network while the PROFIBUS DP base blocks require a separate 24V DC power supply.
- I/O circuits require a separate external power supply.
- Data format: 16-bit integer.
Analog Input Base Blocks
| Cat. No. | 1790D-N4V0 | 1790D-TN4V0 | 1790D-N4C0 | 1790D-TN4C0 | 1790P-TN4C0 |
| Termination Type | D-shell | Screw-clamp | D-shell | Screw-clamp | Screw-clamp |
| Number of Inputs | 4 Single-ended, Non-isolated | 4 Single-ended, Non-isolated | |||
| Signal Range | 0…10V DC | 0…20 mA 4…20 mA |
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| Conversion Rate | 10 ms/channel | 10 ms/channel | |||
| Resolution | 12 bits-unipolar 1/4096 max. 2.44 mV/bit |
12 bits-unipolar 1/4096 max 3.90 mA/bit (4…20 mA) 4.88 mA/bit (0…20 mA) |
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| Overall Accuracy | Voltage Input: 0.2% Full scale @ 0…55 °C | Current Input: 0.2% Full scale @ 0…55 °C | |||
| Network Adapter | DeviceNet | DeviceNet | PROFIBUS DP | ||
| Network Current Load | 85 mA | 85 mA | 135 mA | ||
| Network Power Dissipation, Max. | 1.2 W @ 28.8V DC | ||||
Analog Output Base Blocks
| Cat. No. | 1790D-N0V2 | 1790D-TN0V2 | 1790D-N0C2 | 1790D-TN0C2 | 1790P-TN0C2 |
| Termination Type | D-shell | Screw-clamp | D-shell | Screw-clamp | Screw-clamp |
| Number of Outputs | 2 Single-ended, Non-isolated | 2 Single-ended, Non-isolated | |||
| Signal Range | 0…10V DC | 0…20 mA | |||
| Conversion Rate | 2 ms/channel | 2 ms/channel | |||
| Resolution | 12 bits 1/4096 max 2.44 mV/bit |
12 bits 1/4096 max 4.88 mA/bit |
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| Overall Accuracy | Voltage Output: 0.2% Full scale @ 0…55 °C | Current Output: 0.2% Full scale @ 0…55° C | |||
| Network Adapter | DeviceNet | DeviceNet | PROFIBUS DP | ||
| Network Current Load | 85 mA | 85 mA | 135 mA | ||
| Network Power Dissipation, Max. | 1.2 W @ 28.8V DC | ||||
Thermocouple and RTD Base Blocks
- Built-in DeviceNet (1790D) or PROFIBUS DP (1790P) I/O adapter.
- Thermocouple and RTD base blocks do not support CompactBlock LDX expansion blocks.
- D-shell or screw-clamp I/O connectors.
- DeviceNet base blocks receive power from the DeviceNet network while the PROFIBUS DP base blocks require a separate 24V DC power supply.
- I/O circuits require a separate external power supply.
- Data format: 16-bit integer (2's complement).
| Cat. No. | 1790D-4T0 | 1790D-T4T0 | 1790D-4R0 | 1790D-T4R0 | 1790P-T4R0 |
| Termination Type | D-shell | Screw-clamp | D-shell | Screw-clamp | Screw-clamp |
| Number of Inputs | 4 Thermocouple, Millivolt, Non-isolated | 4 Thermocouple, Millivolt, Non-isolated | 4 RTD, Non-isolated | ||
| Signal Range | ±76.50 mV DC | 1…625 W | |||
| Module Scan Time | 140 ms/channel @ Notch Filter = 60 Hz | 8 ms/channel @ Notch Filter = 60 Hz | |||
| Input Resolution | 16 bits, 0.1 °C/bit or 0.1 °F/bit (Thermocouple Sensors) 20 bit Sigma-Delta modulation converter |
16 bits across 625 ohms, 0.1 °C/bit or 0.1 °F/bit (RTD Sensors) 20 bit Sigma-Delta modulation converter |
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| Overall Accuracy | 0.2% Full scale @ 0…60 °C | 0.2% Full scale @ 0…60 °C | |||
| Network Adapter | DeviceNet | DeviceNet | PROFIBUS DP | ||
| Network Current Load | 50 mA | 50 mA | 100 mA | ||
| Network Power Dissipation, Max. | 1.2 W @ 28.8V DC | ||||
| Cat. No. | Sensors Supported |
| 1790D-4T0 1790D-T4T0 |
10V: -76.50…+76.50 mV Range, -7650…+7650 Scaling Type B: 300…1800 °C Range, 3000…18000 Scaling Type E: -270…1000 °C Range, -2700…10000 Scaling Type J: -210…2100 °C Range, -2100…21000 Scaling Type K: -270…1370 °C Range, -2700…13700 Scaling Type R, -50…1768 °C Range, -500…17680 Scaling Type S: -50…1768 °C Range, -500…17680 Scaling Type T: -270…400 °C Range, -2700…4000 Scaling Type N: -270…1300 °C Range, -2700…13000 Scaling |
| 1790D-4R0 1790D-T4R0 1790P-T4R0 |
100 mW, 1…625W, 10…6250 counts, 100 mW resolution 10 mW, 1…327W, 100…32700 Counts, 10 mW Resolution 100W Pt/a = 0.00385, -200…+850 °C, 2000…+8500 Counts, 0.1 °C Resolution 200W Pt/a = 0.00385, -200…+850 °C, -2000…+8500 Counts, 0.1 °C Resolution 500W Pt/a = 0.00385, -200…+650 °C, -2000…+6500 Counts, 0.1 °C Resolution 100W Pt/a = 0.003916, -200…+640 °C, -2000…+6400 Counts, 0.1 °C Resolution 200W Pt/a = 0.003916, -200…+640 °C, -2000…+6400 Counts, 0.1 °C Resolution 500W Pt/a = 0.003916, -200…+640 °C, -2000…+6400 Counts, 0.1 °C Resolution 100W Nickel, -60…+250 °C, -600…+2500 Counts, 0.1 °C Resolution 120W Nickel, -80…+260 °C, -800…+2600 Counts, 0.1 °C Resolution 200W Nickel, -60…+250 °C, -600…+2500 Counts, 0.1 °C Resolution 500W Nickel, -60…+250 °C, -600…+2500, Counts, 0.1 °C Resolution |