diff --git a/modbus/README.md b/modbus/README.md
index c854b01..f8cc071 100644
--- a/modbus/README.md
+++ b/modbus/README.md
@@ -7,6 +7,8 @@
 - `enum_all.py`, script take IP as input and brute force against all the registers. Identified valid registered will be exported to excel file. Modified registers written back to origional values!
 - `monitor_multiple.py`, monitor several modbus addresses with a configurable interval and pretty colours
 - `set_coil.py`, set a specific coil value, loop option available
+- `set_reg.py`, set a specific register value, loop option available
+- `GRFICS_bang.py`, GRFICS PoC to destroy the chemical plant via modbus.
 
 ## recommendations:
 - `https://github.com/sourceperl/mbtget`, Simple perl script for make some modbus transaction from the command line.
@@ -86,6 +88,7 @@
 [coils:[0][1][0][0][0][0][0]][hold regs:[   13][  666][     ][     ][     ][     ][     ]]
 
 ```
+
 ## set_coil.py
 ```
 $> python set_coil.py -h
@@ -104,4 +107,22 @@
 
 $> python set_coil.py -i 192.168.95.2 -c 5 -tr
 
+```
+
+## set_reg.py
+```
+$> python set_reg.py -h
+usage: set_reg.py [-h] -i IPADDRESS [-p PORT] -r REG -v VAL [-l] [-t TIMEOUT]
+
+optional arguments:
+  -h, --help            show this help message and exit
+  -i IPADDRESS, --ipaddress IPADDRESS
+                        Input IP Address
+  -p PORT, --port PORT  Port Number
+  -r REG, --reg REG     Register Number
+  -v VAL, --val VAL     Register Value
+  -l, --loop            loop on
+  -t TIMEOUT, --timeout TIMEOUT
+                        request every X seconds
+
 ```
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