Yokogawa AQ6377E Optical Spectrum Analyzer Remote Control

Yokogawa AQ6377E Optical Spectrum Analyzer Remote Control

Function positioning

Focus on the remote control function of AQ6377E, provide detailed instructions on the configuration methods of GP-IB interface and Ethernet interface, as well as the use of communication instructions, and support the setting of measurement parameters, data acquisition, and automated analysis of equipment through external controllers (such as PCs).

Remote control core functions and interface configuration

（1） Remote control basic functions

Control mode switching:

Local → Remote: The controller sends a listening address containing REN (Remote Enable) and ATN set to "True". The device enters remote mode, the REMOTE indicator light is on, and only the LOCAL key is available; If receiving LLO (local lock) messages, the LOCAL key is also disabled, and the controller needs to set REN to "False" to unlock.

Remote → Local: Press the device LOCAL button (non local lock state), or the controller sends a GTL (return to local) message, the device returns to local mode, the REMOTE indicator light goes out, and all buttons are restored to available.

Command sending and receiving mechanism:

Buffer: Input buffer (4 MB, discard excess data), output buffer (4 MB, overwrite old data with new data), error buffer (only stores the latest error information).

Message terminator: Program messages support EOI signals, LF characters LF+EOI； The response message is fixed as LF+EOI; Binary waveform transmission only supports EOI.

Timeout setting: It is recommended to set the controller timeout to 30 seconds or more, as the device automatically adjusts the offset every 10 minutes (taking about 30 seconds) to avoid communication interruption; If you need to shorten the timeout, you can manually turn off the automatic offset (instruction: CALibration: ZERO off) and manually execute the offset during the measurement gap (instruction: CALibration: ZERO once).

（2） GP-IB interface configuration and specifications

Hardware connection:

Use a 24 pin GP-IB cable that complies with the IEEE 488-1978 standard. Before connecting, turn off the power to the device and controller to avoid circuit damage;

The screws of the cable connector need to be tightened. A single bus can connect up to 15 devices (including controllers), with a total length of no more than 20 meters. It supports Daisy chain or star topology and circular connections are prohibited.

Function and specifications:

Function: Supports listening (receiving controller commands) and dialogue (outputting data to the controller), but does not support listening only, dialogue only, or controller functions;

Electrical specifications: comply with IEEE 488-1978 (electromechanical) and IEEE 488.2-1992 (protocol), address range 0-30, encoded as ASCII;

Interface message response: Supports IFC (interface clearing), REN (remote enable), GTL (return to local), SDC (selected device clearing), etc., does not support IDY (recognition), PPC (parallel polling configuration).

Address and instruction format settings:

Enter SYSTEM → More 2/4 → Remote Interface → GP-IB, and in GP-IB Setting → My Address, use the knob or directional keys to set the address (0-30), ensuring that the device address in the bus is unique;

The instruction format supports AQ6377E native mode (default) or AQ6317 compatible mode, which can be set through Command Format. The compatibility mode should refer to the AQ6317 instruction mapping table in the appendix.

（3） Ethernet interface configuration and specifications

Hardware connection:

Use UTP (unshielded twisted pair) or STP (shielded twisted pair) cables to connect to the local area network through the RJ45 interface of the device's rear panel;

Connecting to a PC requires the use of a hub with a direct cable, and the performance of cross cable direct connection cannot be guaranteed; The cable needs to match the network speed (10/100/1000 Mbps).

Function and specifications:

|Parameters | Specifications|

|Communication port | 1|

|Standard compatibility | IEEE 802.3|

|Transmission method | Ethernet (10BASE-T/100BASE-TX/1000BASE-T)|

|Transmission rate | 10/100/1000 Mbps (adaptive)|

|Communication Protocol | TCP/IP|

|Default port number | 10001/tcp (Socket communication)|

|Remote monitoring port | 20001/tcp (fixed, requires dedicated software)|

Network configuration steps:

Go to SYSTEM → More 2/4 → Remote Interface, select WORK (SOCKET) or WORK (VXI-11) as the communication interface;

Go to Network Setting → TCP/IP Setting, configure IPv4/IPv6:

IPv4: Select AUTO (DHCP) to automatically obtain the address, or manually set the IP address, subnet mask, and default gateway using MANUAL;

IPv6: Select AUTO for automatic configuration, or manually set IP address, subnet prefix length, and default gateway using MANUAL;

(Socket communication specific) Set remote port number (default 10001), user account (default anonymous, password optional), timeout period (0-21600 seconds, 0 is infinite timeout);

(Optional) Enable remote monitoring (Remote Monitor → Monitor Port=On), supports PC remote viewing of device screens, requires dedicated software.

Authentication and Instruction Format: