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Modbus 是現今工業設備連接方式中最普遍且常用的工業標準通信協定，能夠在同一個RS-485網路中與多個設備間進行通信，例如測量溫度和濕度的系統，並分別將結果傳送顯示至監控電腦中。因此，Modbus 常在監控及採集數據資料 (SCADA) 的系統上來監控電腦和遠程終端裝置 (RTU)使用。
tGW-700系列模組擁有Modbus/TCP轉Modbus/RTU或Modbus/ASCII的閘道器功能，能使Modbus/TCP主機與序列的Modbus RTU/ASCII設備透過網路進行通信，消除傳統序列通信設備電纜的長度限制。而此模組可以建立 pair-connection 的應用 (serial-bridge 或 serial-tunnel)。一旦 pair-connection 設定完成後，便可在二台Modbus RTU/ASCII設備間透過 TCP/IP 協定在電腦主機、伺服器或其它不具有乙太網路功能的 Modbus RTU/ASCII串列設備之間建立連結、傳輸資料或控制設備。
新增的 read-cache 功能 (firmware v1.4.1) 可將 requests/responses 暫存於 tGW-700 的 memory buffer 中. 當有多台上位機 (master) 發送了相同的 requests 給相同的設備時, 則此 read-cache 機置可將暫存的 response 立即回覆給上位機, 大幅減少了 RS-485 的通訊負載, 且提升了 TCP 端的回應速度, 讓整個監控系統運作的更加順暢.
tGW-700系列模組提供有DHCP自動取得並設定IP 的功能，減少因手動設定位址所引起的配置錯誤或IP衝突問題。另外更提供了UDP 回應功能，模組會回應 VxComm Utility 的 UDP 詢問，並將模組的相關資訊回傳 (如： IP 位址、實體位址等)，使得內部管理上會更加方便有效率。
tGW-700系列模組使用32 位元的 MCU，能高效的控制網路封包的收送。內建的Web server則提供了直覺式的網頁管理界面，讓使用者修改模組設定，包括DHCP、Static IP、 Gateway、Mask 與串列埠。
tGW-700系列模組擁有內建的雙重看門狗機制(Watchdog) ，能夠確保模組在惡劣環境也能持續運作。“CPU Watchdog “在tGW-700運作異常時，將自動重新啟動CPU恢復tGW-700。 “Host Watchdog”主要用來監控模組與主機間運作情況；若模組與主機 (PC或PLC) 在設定的一段時間內(watchdog timeout)無實質通訊或發生通訊問題時，模組也將自動重啟。
tGW-700系列模組提供真正符合 IEEE 802.3af 標準 (Class 1) 的 Power over Ethernet (PoE) 功能 ，使用標準 category 5 乙太網路電纜接受 PoE switch (如：NS-205PSE) 供電。 此外，也可從DC adapter 來接受供電。 tGW-700系列模組是專為超低功耗，降低額外電力成本來設計的，特別是在使用了大量的設備服務器的情況下更顯重要。能選擇這種節能設備來降低電力消耗，也是為了維護這個綠色環境來進一分心力。
tGW-712 模組配置有一個 male DB-9的接頭，其它系列模組為了使接線更加方便且容易，配置了有可拆卸式的接線端子連接器，同時還支援了RS–485 收送方向自動控制，提高了RS-485通信的穩定性。 |
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- 支援Modbus TCP/UDP Master及Slave
- 支援Modub RTU/ASCII Master及Slave
- 每個Serial Port最大連線數: 32個 (tGW-71x), 16個 (tGW-72x) 或 10個 (tGW-73x)
- 支援Read-cache功能，使Modbus TCP/UDP更快速的回應
- 支援能回應設備搜尋的UDP功能 (UDP Search)
- 支援靜態IP (Static IP)或動態IP (DHCP) 網路配置
- 可透過網路簡單迅速的更新firmware (BOOTP, TFTP)
- 提供精簡網頁伺服器來配置組態設定 (HTTP)
- 使用32 位元 MCU 來有效掌握網路流量
- 10/100 Base-TX 網路控制器，RJ-45 連接埠 (自動協商、網路線自動識別、LED指示燈)
- 雙電源輸入: PoE (IEEE 802.3af, Class 1)及DC插孔輸入
- RS-485方向自動控制
- 配有容易接線的male DB-9接頭或接線端子連接器
- 體積精簡化與低功率消耗
- 符合 RoHS環保規範
- 經濟實惠的Modbus 閘道器設備
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- 工廠自動化
- 大樓自動化
- 家庭自動化
- 遠端診斷與管理
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| Model |
tGW-712 |
tGW-722 |
tGW-732 |
tGW-715 |
tGW-725 |
tGW-735 |
tGW-718 |
tGW-724 |
tGW-734 |
| System |
| CPU |
32-bit ARM |
| Communication Interface |
| Ethernet |
10/100 Base-TX, 8-pin RJ-45 x 1,
(Auto-negotiating, Auto-MDI/MDIX, LED indicator)
PoE (IEEE 802.3af, Class 1) |
| COM1 (TCP Port: 502) |
5-wire RS-232 |
5-wire RS-232 |
3-wire RS-232 |
2-wireRS-485
4-wire RS-422 |
2-wire RS-485 |
2-wire RS-485 |
3-wire RS-232 |
2-wire RS-485 |
2-wire RS-485 |
2-wireRS-485
4-wire RS-422 |
| COM2 (TCP Port: 503) |
- |
5-wire RS-232 |
3-wire RS-232 |
- |
2-wire RS-485 |
2-wire RS-485 |
- |
5-wire RS-232 |
3-wire RS-232 |
| COM3 (TCP Port: 504) |
- |
- |
3-wire RS-232 |
- |
- |
2-wire RS-485 |
- |
- |
3-wire RS-232 |
| Self-Tuner |
- |
Yes, automatic RS-485 direction control |
| RS-485 |
Bias Resistor |
- |
Yes, 1 KΩ |
| Node |
- |
254 (max.) |
| UART |
16c550 or compatible |
| COM Port Format |
| Baud Rate |
115200 bps Max. |
| Data Bit |
5, 6, 7, 8 |
| Parity |
None, Odd, Even, Mark, Space |
| Stop Bit |
1, 2 |
| Power |
| Power Input |
PoE: IEEE 802.3af, Class 1
DC jack: +12 ~ 48 VDC |
| Power Consumption |
0.07 A @ 24 VDC |
| Mechanism |
| Connector |
Male DB-9 x 1 |
10-Pin Removable Terminal Block x 1 |
| Mounting |
DIN-Rail |
| Flammability |
Fire Retardant Materials (UL94-V0 Level) |
| Environment |
| Operating Temperature |
-25 ~ +75 °C |
| Storage Temperature |
-30 ~ +80 °C |
| Humidity |
10 ~ 90% RH, non-condensing |
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| Model |
RS-232 |
RS-422/485 |
RS-485 |
CPU |
Ethernet |
Baud Rate |
COM1
TCP Port: 502 |
COM2
TCP Port: 503 |
COM3
TCP Port: 504 |
| tGW-712 |
1 |
- |
- |
32-bit ARM |
10/100 Base-TX, PoE |
115200 bps |
5-wire RS-232 |
- |
- |
| tGW-722 |
2 |
- |
- |
5-wire RS-232 |
5-wire RS-232 |
- |
| tGW-732 |
2 |
- |
- |
3-wire RS-232 |
3-wire RS-232 |
3-wire RS-232 |
| tGW-715 |
- |
1 |
- |
2-wire RS-485
4-wire RS-422 |
- |
- |
| tGW-725 |
- |
- |
2 |
2-wire RS-485 |
2-wire RS-485 |
- |
| tGW-735 |
- |
- |
3 |
2-wire RS-485 |
2-wire RS-485 |
2-wire RS-485 |
| tGW-718 |
1 |
- |
3-wire RS-232 |
- |
- |
2-wire RS-485
4-wire RS-422 |
| tGW-724 |
1 |
- |
1 |
2-wire RS-485 |
5-wire RS-232 |
- |
| tGW-734 |
2 |
- |
1 |
2-wire RS-485 |
3-wire RS-232 |
3-wire RS-232 |
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| tGW-712 CR |
Tiny Modbus/TCP to RTU/ASCII gateway with PoE and 1 RS-232 Port (RoHS) |
| tGW-722 CR |
Tiny Modbus/TCP to RTU/ASCII gateway with PoE and 2 RS-232 Ports (RoHS) |
| tGW-732 CR |
Tiny Modbus/TCP to RTU/ASCII gateway with PoE and 3 RS-232 Ports (RoHS) |
| tGW-715 CR |
Tiny Modbus/TCP to RTU/ASCII gateway with PoE and 1 RS-422/485 (RoHS) |
| tGW-725 CR |
Tiny Modbus/TCP to RTU/ASCII gateway with PoE and 2 RS-485 Ports (RoHS) |
| tGW-735 CR |
Tiny Modbus/TCP to RTU/ASCII gateway with PoE and 3 RS-485 Ports (RoHS) |
| tGW-718 CR |
Tiny Modbus/TCP to RTU/ASCII gateway with PoE and 1 RS-232/422/485 Port (RoHS) |
| tGW-724 CR |
Tiny Modbus/TCP to RTU/ASCII gateway with PoE and 1 RS-232 and 1 485 Ports (RoHS) |
| tGW-734 CR |
Tiny Modbus/TCP to RTU/ASCII gateway with PoE and 2 RS-232 and 1 485 Ports (RoHS) |
| Includes one CA-002 cable. |
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Note: Coating version supports -40 ~ +75 °C operating temperature, call for more information. |
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| CA-002 |
DC connector to 2-wire power cable, 0.3 M |
| CA-PC09F |
DB-9 Female connector with plastic cover |
| CA-0910N |
DB-9 Female-Female 3-wire Null Modem Cable, 1 M |
| CA-0915 |
Male DB-9 to Female DB-9 Cable, 1.5 m |
| CA-0910F |
Female DB-9 to Female DB-9 Cable, 1.0 m |
| CA-0909 |
Female DB-9 to Female DB-9 connector for tDS-712/tGW-712. |
| NS-205 CR |
Unmanaged 5-Port Industrial Ethernet Switch (RoHS) |
| NS-205PSE CR |
Unmanaged Ethernet Switch with 4 PoE Ports and 1 RJ-45 Uplink (RoHS) |
| FRA05-S12-SU |
12 V/0.58 A (max) Power Supply. |
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