Casio TE-7000S, Service Manual

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[ 22 ] ARCNET test
[Function]
This test will check the counter-communication of ARCNET.
Always make the receive ECR in the wait mode first and then send data from the send ECR.
Continue the test while the communication is done normally.
The counter of the number of receive/send packets to LCD is displayed after the communication
normally starts. It is continuously displayed while the communication is done normally.
* send/receive data
1. Normal mode
When the receive ECR (a=2 below) receives the data normally, the test checks the received data,
reverse the received data (FBh – 01h, 00h, FFh – 00h), and sends back the data to the send ECR
(a= 1). The send ECR checks the reversed data. (The same repeats hereinafter)
* Retry
Receive ECR: Ignores the error until the number of error reaches consecutivel r times. Returns to
the wait mode afterwards.
Send ECR: Sends data one second after the receive ECR does not respond, and retries until r times.
Sends an error and ends afterwards.
2. Simultaneous mode
Checks only the received data when the receive ECR (a=4) receives the data normally.
The send ECR (a=3) waits for one second and start sending data again. (The same repeats
hereinafter)
[Operation]
* Make sure to check the ID upon setting the ID. When changing the ID, turn the power on again.
r l l m m x 0 a 5 1 SUBTOTAL
r: the number of retries (1 – 9 times)
Then number of retries will be 5 when 0 or no input.
Note that the retry will be invalid in the simultaneous mode.
ll: ID number of the other ECR
mm: Own ID number
x: Baud rate selection
0=156 kbps, 1=312 kbps
a: Mode selection
1=Send mode, 2=Reception mode, 3=Send mode (Simultaneous)
4=Reception mode (Simultaneous)
The test continues unless an error occurs.
To stop the test, press “Esc” key.
[LCD]
* Error display
| ARCNET RETRY OVER
| Selected retry number was exceeded.
| ARCNET BLK ERR | Received does not correspond to the sent Block No.
| ARCNET DATA ERR | Received data does not correspond to the sent data.
| ARCNET LENG ERR | Received data length does not correspond to the sent data length.
| ARCNET TIMEOUT | Time out error when starting the ECR or between blocks.
| ARCNET OPEN ERR | ARCNET initialization failed.
SID LRC DID LEN DATA 00h~FFh, 00h~FBh
508 byte
ARCNET rllmmx0a51
END rllmmx0a51