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WCS-232_v6.0_User Manual_Eng_DM v1.0.1

ManualsBrandsSystemBase ManualsBluetooth[SystemBase WCS-232 v6.0] RS232 to Bluetooth Converter 2pcs(Pair)
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WCS-232 v6.0
User Manual
67
D.2. Data Loss or Malfunction
D.2.1. Hardware Flow Control
WCS-232 transfers data from the host to the counterpart Bluetooth device. If the wireless communication
environment is not good, packet retransmission repeats and data accumulates in the buffer, also causing
communication delays. Without hardware flow control, buffer overflow may occur if WCS-232 continues to receive
data from the host with internal buffer is full at a certain level. To prevent this, WCS-232 is designed to empty the
buffer, which means data loss. Therefore, it is recommended to use hardware flow control when transferring large
amount of data or when the wireless environment is not good.
D.2.2. Response Message
WCS-232 outputs message such as OK, ERROR, CONNECT, DISCONNECT to the host according to changes by
AT commands or itself. These messages may cause unexpected malfunctions in the host device. At this time, please
turn off the response feature(Please refer to S-Register 10).
D.3. Transmission Delay
D.3.1. Wireless Conversion Delay
WCS-232 has a time lag about 30msec to wirelessly transmit data received from the host. This time difference may
increase depending on the wireless communication environment. Also, WCS-232 initiates wireless conversion as
soon as data comes in serial and transmits it. This allows continuous data to be split and sent to the receiving side.
To prevent this, WCS-232 provides Intercharacter Timeout feature, which is sending data only when there is no
incoming data in serial for a period of time(Please refer to S-Register 23, 26).
D.3.2. Wireless Environment
By using 79 channels, Bluetooth can be used without interference as much as possible. However, data loss and
errors can occur if large data is sent and received using too much Bluetooth equipment in a limited space. Also,
WCS-232 can avoid interference with WiFi using AFH function, but the effectiveness can be reduced depending on
the number or distance of equipment used(AFH is automatically applied).