Yaskawa JAPMC-MC2303-E - Manual (Page 87)

6.1 Message Send Function
6.1.1 Outline Specifications
6-2
6.1 Message Send Function
When a request is sent assuming that the 262IF-01 is a client for FL-net message transmission or a response is sent
assuming that it is a server, the message send function “MSG-SND” is used.
When no response comes from remote device, retransmission is performed in the 262IF-01 according to the FL-net
protocol. When a timeout is detected in the 262IF-01, the MSG-SND function is terminated abnormally.
ΠA timeout is detected when no response comes in spite three attempts (each involving a waiting time of 100 ms)
made to receive ACK after sending message.
6.1.1 Outline Specifications
∗ 1. The I/O designations are as follows:
B-VAL: I/O is specified as bit data.
I-REG: I/O is specified as integer data. Specify the number of an integer register.
Constants (immediate data) can also be specified for inputs.
Address input: The address of the specified register (any integer register) is passed to the function.
∗ 2. Non-procedure 1: Data is sent in word units.
Function Name MSG-SND
Function
Sends a message to a remote station on the line specified by the Transmission Device Type parameter
(DEV-TYP). The function supports multiple protocols. The Execute command must be held ON until
the Complete or Error output turns ON.
Function Definition
I/O Definitions No. Name I/O Designation *1 Description
Inputs
1 Execute B-VAL Send Message command
2 Abort B-VAL Send Message Abort command
3 Dev-Typ I-REG
Transmission Device Type
FL-net = 14
4 Pro-Typ I-REG
Communication Protocol
MEMOBUS = 1, Non-procedure 1 *2 = 2
5 Cir-No I-REG
Circuit Number
FL-net = 1 to 8
6 Ch-No I-REG
Transmission Buffer Channel Number
FL-net = 1 to 10
7 Param Address input
Parameter List Leading Address
(MA, DA)
Outputs
8 Busy B-VAL Processing in progress.
9 Complete B-VAL Processing completed.
10 Error B-VAL Error has occurred.