diff --git a/iocsh/readme.md b/iocsh/readme.md
index 2bb582f..0a7b9f1 100644
--- a/iocsh/readme.md
+++ b/iocsh/readme.md
@@ -7,10 +7,13 @@ sudo iocsh test_4ax_box.script
 ```
 camon -d -t -nostat -nounit -int c6025a:m0s006-BI08 c6025a:m0s005-BO07 c6025a:Axis1-EnaAct c6025a:Axis1-VelAct
 
+# for classic camonitor format:
 /usr/local/epics/base-7.0.7/bin/RHEL8-x86_64/camonitor -n c6025a:m0s006-BI08 c6025a:m0s005-BO07 c6025a:Axis1-EnaAct c6025a:Axis1-VelAct
 ```
 # Plot
 ```
+Must be in "classic" camonitor format to use plotCaMonitor.py
+
 Velo:
 cat data_log.txt |  grep Vel | python3 ~/myhome/sources/ecmccomgui/pyDataManip/plotCaMonitor.py