- 產品
- 供應
- 公司
- 新聞
|
|
||||||||||||||||||||||||||||
TC Input/RTD Input Module (Isolated Channels)
These modules receive signals from mV, thermocouple (TC), RTD, and potentiometer (POT). These are isolated between the field and the system as well as between each channel.
They can be used in dual redundant configuration.
These two modules can be used in dual redundant configuration.
Items |
Specifications |
||
Model |
AAT145 |
AAR145 |
|
Number of input channels |
16, isolated channels |
16, isolated channels |
|
Input signal |
TC: JIS C1602:1995 (*1), IEC584:1995 Type J, K, E, B (*2), R, S, T, N mV: -100 to 150 mV, -20 to 80 mV |
RTD: JIS C1604:1997 (*3), IEC751:1995 Pt100 (3-wire type) POT: Total resistance 100 Ω to 10 kΩ Span resistance: 50 % or more of total resistance |
|
Switching input signals |
TC/mV can be set individually for CH1 to CH16. |
RTD/POT can be selected individually for CH1 to CH16. |
|
Allowable input voltage |
±5 V |
±5 V |
|
Withstanding voltage |
Between input and system: 500 V AC (for single card: 1500 V AC), For 1 minute Between input channels: 200 V AC, For 1 minute |
||
Input resistance |
Power ON |
1 MΩ or more |
|
Power OFF |
1 MΩ or more |
||
Accuracy |
±40 µV |
RTD: ±150 mΩ POT: ±0.2 %/FS |
|
Allowable total resistance of signal source plus wiring |
1000 Ω or less |
150 Ω or less (wiring resistance per wire)(*4) |
|
Effect of allowable signal source resistance (1000 Ω) |
±20 µV |
— |
|
Reference junction compensation accuracy |
±1 °C (*5) (6) |
— |
|
Measurement current |
— |
RTD: 1 mA |
|
Data update period |
1 s |
||
Burn-out |
All channels can be set together. Setting: not available/available (UP/DOWN) detection time: 60 s |
||
Temperature drift |
±80 µV/10 °C |
RTD: ±0.3 Ω/10 °C POT: ±0.4 %/10 °C |
|
Maximum current consumption |
350 mA (5 V DC) |
350 mA (5 V DC) |
|
Weight |
0.3 kg |
||
External connection |
Dedicated cable (KS1) |
Dedicated cable (KS8/AKB335) |
|
*1: Model AAT145 is also in compliance with JIS C1602:1981.
*2: Type B dose not carry out temperature compensation and can not measure under 44 °C.
*3: Model AAR145 is also in compliance with JIS C1604:1989 (Pt100, JPt100).
現場總線功能模塊的工程實施與FCS其他功能模塊相同。現場總線功能模塊和其他FCS功能模塊在操作和監視環境方面也是相同的。橫河電機DCS的現場總線應用在工程、操作和監視方面沒有任何額外的需求。
更多現場總線信息請點擊這里。
應用現場總線的最大優勢是對現場設備的高效維護。橫河電機提供資產管理軟件包——工廠資源管理器(PRM)，用以進行設備管理和診斷。通過PRM，現場總線的優勢得以優化，使得整個系統的維護更加高效。
PRM通過現場總線收集設備維護信息，將其存儲在PRM數據庫中。通過現場總線即可進行現場設備的維護。因此維護工程師無需深入偏遠地區和危險區域的設備現場，工作效率得到了極大的提高。
審計跟蹤管理在控制和維護系統中是非常重要的。所有由PRM進行的設備維護工作都會被記錄和存儲下來，檢索起來也非常方便。
通過設備管理信息的綜合管理，可以預測設備的更新周期和設備故障的發展趨勢。這種技術可最小化設備問題對工廠運行的影響，也可以計劃和安排維護工作以及零件的采購。
除現場總線設備外，PRM也可以為已有設備創建數據庫。數據庫中記錄并管理維護信息，以支持工廠中所有設備的整體全面的計劃維護。
