diff --git a/.gitmodules b/.gitmodules
index 719539280..18490da91 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -22,3 +22,6 @@
     path = modules/pva2pva
     url = https://github.com/epics-base/pva2pva
     branch = master
+[submodule "modules/pcas"]
+	path = modules/pcas
+	url = https://github.com/epics-modules/pcas
diff --git a/modules/pcas b/modules/pcas
new file mode 160000
index 000000000..49c4882f7
--- /dev/null
+++ b/modules/pcas
@@ -0,0 +1 @@
+Subproject commit 49c4882f73da6cfe3af9584720c67490d98644e5