Rockwell Automation 2706-F11J_F11JC_F21J_F21JC DL50 INSTALLATION MANUAL - Manual (Page 108)

Appendix A
Display Descriptions
A–2
Table 5.C shows the codes used to enter these attributes for Simplex
Protocol, and Table 5.H shows those for Duplex Protocol. In addition,
immediately after each of these tables there is a descriptive list of special
control characters which can be used within a message. One of these special
characters (Ctrl F) toggles Flash on and off, one (Ctrl R) clears the message
buffer, and three of them (Ctrl X,Y and Z), in tricolor displays only, change
the color.