Delta AS Series Programming Manual page 1315

AS Ser ies Pro gra mm in g M anu al
5. The way the EMER instruction reads Emergency messages is the same as Emergency communication method in
AS operation manual. Please just select one communication method from them when reading Emergency
messages.
6. The EMER instruction can read 5 Emergency messages at most. Every time the reading is successful, the Ok flag
turns on and Len displays the total number of messages which are read. You can judge how many consecutive
words are occupied by Dest based on the length. Every message uses 4 words. The data are stored in the order
from lower 8 bits to higher 8 bits. The storage format is shown as below. (E.g. Dest is D10, Len is 2 which is the
number of messages stored in D5.)
_6
6 - 1 0 3 6
D device no. Value
D5 2
D device no.
D10 The second byte in the first message
D11 The forth byte in the first message
D12 The sixth byte in the first message
D13 The eighth byte in the first message
The second byte in the second
D14
D15 The forth byte in the second message
D16 The sixth byte in the second message
D17 The eighth byte in the second message
Higher 8 bits
message
Lower 8 bits
The first byte in the first message
The third byte in the first message
The fifth byte in the first message
The seventh byte in the first message
The first byte in the second message
The third byte in the second message
The fifth byte in the second message
The seventh byte in the second
message