Rockwell Automation 2755-DM9, -DM9E High Speed Decoder - Manual (Page 5)

Table of Contents
iii
Chapter 7
Chapter Objectives 7–1
RS–232/RS–422 ASCII Command Protocol 7–1
Single Character Commands 7–1
Two Character Commands 7–2
Responses to Commands 7–3
Host Commands 7–4
1. Set Code 39, I 2–of–5, and Codabar Check Characters 7–5
2. Clear Output Counter 7–6
3. Enable/Disable Bar Code Type 7–6
4. Set Configuration to Default Values 7–7
5. Set Host Communications 7–7
6. Write Header Message 7–8
7. Set Package Detect Input Filter and Sense 7–9
8. Write Source Identification Message 7–10
9. Read Output Counter 7–10
10. Set Message Format 7–11
11. Read Match Code Table 7–12
12. Write Match Code Table 7–13
13. Clear No–Read Count 7–14
14. Write No–Read Message 7–15
15. Read No–Read Count 7–16
16. Set Output Condition and Duration 7–16
17. Clear Package Count 7–17
18. Read Package Count 7–17
19. Reset Decoder 7–18
20. Set Configuration to Default Values, Save to EEPROM & Restart 7–18
21. Save New Configuration to EEPROM and Restart
7–19
22. Save New Configuration to EEPROM (No Restart) 7–19
23. Set Scanner Control 7–20
24. Set Bar Code Specific Length 7–21
Chapter 8
Chapter Objectives 8–1
RS–485 Command Protocols 8–1
RS–485 ASCII Command Protocol 8–1
RS–485 PCCC Command Protocol 8–2
PCCC Command Format 8–2
PCCC Commands 8–5
Unprotected Read Command 8–5
Unprotected Read Command Structure 8–6
Unprotected Read Reply Format 8–7
Unprotected Read Example 8–9
Host Commands Using a
RS-232 or RS-422 Interface
Host Commands Using the
RS-485 Interface