TOHO ELECTRONICS TTM-00BT - Manual (Page 22)

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7.9.7 Composition of a memory bank function message
n For codes ① to ⑫, see "7.9.9 Code description."
n For specific examples of request messages, see "7.9.11 Examples of communications to be
read" and "7.9.12 Examples of communications to be written." Note that the request is in
lowercase characters.
1) Composition of a read request message
S
T
X
□ □ r □ □ □ □
E
T
X B
C
C
① ② ③ ④ ⑫ ―⑤― ⑦ ⑧
Start code Unit number Channel Contents of the request: read Memory bank No. Identifier End code BCC data
2) Composition of a write request message
S
T
X
□ □ w □ □ □ □ □ □ □ □ □
E
T
X B
C
C
① ② ③ ④ ⑫ ―⑤― ―――⑥――― ⑦ ⑧
Start code Unit number Channel Contents of the request: write Memory bank No. Identifier Numerical data End code BCC data