1. General Introduction
The DI821 is a 8 channel, 230 V a.c./d.c, digital input module for the S800 I/O. This module has 8 digital inputs. The ac input voltage range is 164 to 264 V and the input current is 11 mA at 230 V a.c. The d.c. input voltage range is 175 to 275 volt and the input current is 1.6 mA at 220 V d.c. The inputs are individually isolated.
Every input channel consists of current limiting components, EMC protection components, input state indication LED, optical isolation barrier and an analog filter (6 ms).
Channel 1 can be used as voltage supervision input for channels 2 - 4, and channel 8 can be used as voltage supervision input for channels 5 - 7. If the voltage connected to channel 1 or 8 disappears, the error inputs are activated and the Warning LED turns on. The error signal can be read from the Module Bus
2. Specification of DI821
General info | |
Type | Digital Input |
Signal specification | 230 V a.c., 220 V d.c. |
Article number | 3BSE008550R1 |
Number of channels | 8 |
Signal type | Current sinking |
HART | No |
SOE | No |
Redundancy | No |
High Integrity | No |
Intrinsic safety | No |
Mechanics | S800 |
Detailed data | |
Input voltage range, "0" | 0..50 V a.c., 0..40 V d.c. |
Input voltage range, "1" | 164..264 V a.c., 175..275 V d.c. |
Input impedance | 21 kΩ (a.c.) / 134 kΩ (d.c.) |
Isolation | Individually isolated channels |
Filter times (digital, selectable) | 2, 4, 8, 16 ms |
Input frequencey range | 47..63 Hz |
Analog filter On/Off delay | 5 / 28 ms |
Current limiting | Sensor power can be current limited by the MTU |
Maximum field cable length | 200 meters (219 yards) 100 pF/m for a.c., 600 meters (656 yards) for d.c. |
Rated insulation voltage | 250 V |
Dielectric test voltage | 2000V a.c. |
Power dissipation | Typ.2.8 W |
Current consumption +5 V Module bus | 50 mA |
Current consumption +24 V Module bus | 0 |
Current consumption +24 V external | 0 |
Diagnostics | |
Front LED’s | F(ault), R(un), W(arning), Channel 1-16 Status |
Supervision | Process voltage, Channel 1 and 8 can be used per group |
Status indication of supervision | Module Error, Module Warning, Channel error |
Environmental and certification | |
CE mark | Yes |
Electrical safety | IEC 61131-2, UL 508 |
Hazardous location | - |
Marine certification | ABS, BV, DNV-GL, LR, RS, CCS |
Protection rating | IP20 according to IEC 60529 |
Corrosive atmosphere ISA-S71.04 | G3 |
Climatic operating conditions | 0 to +55 °C (Storage -25 to +70 °C), RH=5 to 95 % no condensation, IEC/EN61131-2 |
Pollution degree | Degree 2, IEC 60664-1 |
Mechanical operating conditions | IEC/EN 61131-2 |
EMC | EN 61000-6-4 and EN 61000-6-2 |
Overvoltage categories | IEC/EN 60664-1, EN 50178 |
Equipment class | Class I according to IEC 61140; (earth protected) |
Max ambient temperature | 55 °C (131 °F), for vertical mounting 40 °C (104 °F) |
RoHS compliance | DIRECTIVE/2011/65/EU (EN 50581:2012) |
WEEE compliance | DIRECTIVE/2012/19/EU |
Comp ability | |
Use with MTU | TU811, TU813, TU831, TU839, TU851 |
Keying code | AC |
Dimensions | |
Width | 45 mm (1.77”) |
Depth | 102 mm (4.01”), 111 mm (4.37”) including connector |
Height | 119 mm (4.7”) |
Weight | 0.18 kg (0.4 lbs.) |
3. Selection table of I/O Modules
Name | HART | High Integrity | Intrinsic safety | Mechanics | Redundancy | SOE | Type |
DI801 | No | No | No | S800L | No | No | Digital Input |
DI802 | No | No | No | S800L | No | No | Digital Input |
DI803 | No | No | No | S800L | No | No | Digital Input |
DI810 | No | No | No | S800 | No | No | Digital Input |
DI811 | No | No | No | S800 | No | No | Digital Input |
DI814 | No | No | No | S800 | No | No | Digital Input |
DI818 | No | No | No | S800 | No | No | Digital Input |
DI820 | No | No | No | S800 | No | No | Digital Input |
DI821 | No | No | No | S800 | No | No | Digital Input |
DI825 | No | No | No | S800 | No | Yes | Digital Input |
DI828 | No | No | No | S800 | No | No | Digital Input |
DI830 | No | No | No | S800 | No | Yes | Digital Input |
DI831 | No | No | No | S800 | No | Yes | Digital Input |
DI840 | No | No | No | S800 | Yes | Yes | Digital Input |
DI880 | No | Yes | No | S800 | Yes | Yes | Digital Input |
DI890 | No | No | Yes | S800 | No | No | Digital Input |
DO801 | No | No | No | S800L | No | No | Digital Output |
DO802 | No | No | No | S800L | No | No | Digital Output |
DO810 | No | No | No | S800 | No | No | Digital Output |
DO814 | No | No | No | S800 | No | No | Digital Output |
DO815 | No | No | No | S800 | No | No | Digital Output |
DO818 | No | No | No | S800 | No | No | Digital Output |
DO820 | No | No | No | S800 | No | No | Digital Output |
DO821 | No | No | No | S800 | No | No | Digital Output |
DO828 | No | No | No | S800 | No | No | Digital Output |
DO840 | No | No | No | S800 | Yes | No | Digital Output |
DO880 | No | Yes | No | S800 | Yes | No | Digital Output |
DO890 | No | No | Yes | S800 | No | No | Digital Output |
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