Yokogawa DL350 Scope Order Communication Interface

Common Command Group *IDN? 、 *CLS, OPC standard IEEE 488.2 command, query device model, clear status register, mark operation completed

Status monitoring and troubleshooting

（1） Status reporting mechanism

The device achieves status monitoring through status bytes, registers, and queues. The core components include:

Status byte: 8-bit binary data, reflecting the overall operating status of the device, such as bit0 indicating operation completion and bit5 indicating error occurrence.

Standard event register: records device standard events (such as operation completion, query errors), which can be enabled through "* ESE" and queried and cleared through "* ESR?".

Extended event register: records device specific events (such as collection completion, trigger occurrence), enabled through the "STATus: EESE" setting, cleared through the "STATus: EESR?" query.

Output and Error Queue: The error queue stores the latest error code and description, which can be queried through "STATus: ERRor?"; The output queue stores non error messages, which can be set to be stored or not through ": STATus: QENable".

（2） Common problem solving

Troubleshooting steps for problem types and phenomena

Communication connection issue: Ethernet/USB cannot establish a connection. 1. Check if the cable connection is secure, and confirm if the Ethernet IP address is in the same network segment; 2. USB needs to confirm whether the driver is installed correctly and whether the device's "USB Function" is set to "TMC"; 3. Restart the device and PC and try again

Instruction execution problem: Sending instructions without response or error. 1. Check the instruction syntax (such as case and parameter range), refer to Chapter 4 of the manual to confirm the instruction format; 2. Confirm that the device is in remote mode and there is no local lock; 3. Check the communication timeout setting. If the data volume is large, the timeout time can be extended

Data transmission issue: waveform data transmission interruption or distortion. 1. Confirm that the transmitted data format is consistent with the supported format of the device (such as byte/word/ASCII); 2. Ethernet needs to check network bandwidth to avoid transmitting large amounts of data simultaneously; 3. USB requires the use of short distance cables to reduce signal attenuation