diff --git a/src/hardware/scpi-pps/api.c b/src/hardware/scpi-pps/api.c
index 22c79740..02a34499 100644
--- a/src/hardware/scpi-pps/api.c
+++ b/src/hardware/scpi-pps/api.c
@@ -313,7 +313,7 @@ static int config_get(uint32_t key, GVariant **data,
 	char *channel_group_name;
 	int cmd, ret;
 	const char *s;
-	int oper_cond;
+	int reg;
 
 	if (!sdi)
 		return SR_ERR_ARG;
@@ -376,7 +376,10 @@ static int config_get(uint32_t key, GVariant **data,
 		cmd = SCPI_CMD_GET_OVER_VOLTAGE_PROTECTION_ENABLED;
 		break;
 	case SR_CONF_OVER_VOLTAGE_PROTECTION_ACTIVE:
-		gvtype = G_VARIANT_TYPE_BOOLEAN;
+		if (devc->device->dialect == SCPI_DIALECT_HP_66XXB)
+			gvtype = G_VARIANT_TYPE_STRING;
+		else
+			gvtype = G_VARIANT_TYPE_BOOLEAN;
 		cmd = SCPI_CMD_GET_OVER_VOLTAGE_PROTECTION_ACTIVE;
 		break;
 	case SR_CONF_OVER_VOLTAGE_PROTECTION_THRESHOLD:
@@ -388,7 +391,10 @@ static int config_get(uint32_t key, GVariant **data,
 		cmd = SCPI_CMD_GET_OVER_CURRENT_PROTECTION_ENABLED;
 		break;
 	case SR_CONF_OVER_CURRENT_PROTECTION_ACTIVE:
-		gvtype = G_VARIANT_TYPE_BOOLEAN;
+		if (devc->device->dialect == SCPI_DIALECT_HP_66XXB)
+			gvtype = G_VARIANT_TYPE_STRING;
+		else
+			gvtype = G_VARIANT_TYPE_BOOLEAN;
 		cmd = SCPI_CMD_GET_OVER_CURRENT_PROTECTION_ACTIVE;
 		break;
 	case SR_CONF_OVER_CURRENT_PROTECTION_THRESHOLD:
@@ -399,6 +405,13 @@ static int config_get(uint32_t key, GVariant **data,
 		gvtype = G_VARIANT_TYPE_BOOLEAN;
 		cmd = SCPI_CMD_GET_OVER_TEMPERATURE_PROTECTION;
 		break;
+	case SR_CONF_OVER_TEMPERATURE_PROTECTION_ACTIVE:
+		if (devc->device->dialect == SCPI_DIALECT_HP_66XXB)
+			gvtype = G_VARIANT_TYPE_STRING;
+		else
+			gvtype = G_VARIANT_TYPE_BOOLEAN;
+		cmd = SCPI_CMD_GET_OVER_TEMPERATURE_PROTECTION_ACTIVE;
+		break;
 	case SR_CONF_REGULATION:
 		gvtype = G_VARIANT_TYPE_STRING;
 		cmd = SCPI_CMD_GET_OUTPUT_REGULATION;
@@ -442,13 +455,13 @@ static int config_get(uint32_t key, GVariant **data,
 		if (devc->device->dialect == SCPI_DIALECT_HP_66XXB) {
 			/* Evaluate Operational Status Register from a HP 66xxB. */
 			s = g_variant_get_string(*data, NULL);
-			sr_atoi(s, &oper_cond);
+			sr_atoi(s, &reg);
 			g_variant_unref(*data);
-			if (oper_cond & (1 << 8))
+			if (reg & (1 << 8))
 				*data = g_variant_new_string("CV");
-			else if (oper_cond & (1 << 10))
+			else if (reg & (1 << 10))
 				*data = g_variant_new_string("CC");
-			else if (oper_cond & (1 << 11))
+			else if (reg & (1 << 11))
 				*data = g_variant_new_string("CC-");
 			else
 				*data = g_variant_new_string("UR");
@@ -463,6 +476,36 @@ static int config_get(uint32_t key, GVariant **data,
 		}
 	}
 
+	if (cmd == SCPI_CMD_GET_OVER_VOLTAGE_PROTECTION_ACTIVE) {
+		if (devc->device->dialect == SCPI_DIALECT_HP_66XXB) {
+			/* Evaluate Questionable Status Register bit 0 from a HP 66xxB. */
+			s = g_variant_get_string(*data, NULL);
+			sr_atoi(s, &reg);
+			g_variant_unref(*data);
+			*data = g_variant_new_boolean(reg & (1 << 0));
+		}
+	}
+
+	if (cmd == SCPI_CMD_GET_OVER_CURRENT_PROTECTION_ACTIVE) {
+		if (devc->device->dialect == SCPI_DIALECT_HP_66XXB) {
+			/* Evaluate Questionable Status Register bit 1 from a HP 66xxB. */
+			s = g_variant_get_string(*data, NULL);
+			sr_atoi(s, &reg);
+			g_variant_unref(*data);
+			*data = g_variant_new_boolean(reg & (1 << 1));
+		}
+	}
+
+	if (cmd == SCPI_CMD_GET_OVER_TEMPERATURE_PROTECTION_ACTIVE) {
+		if (devc->device->dialect == SCPI_DIALECT_HP_66XXB) {
+			/* Evaluate Questionable Status Register bit 4 from a HP 66xxB. */
+			s = g_variant_get_string(*data, NULL);
+			sr_atoi(s, &reg);
+			g_variant_unref(*data);
+			*data = g_variant_new_boolean(reg & (1 << 4));
+		}
+	}
+
 	return ret;
 }
 
diff --git a/src/hardware/scpi-pps/profiles.c b/src/hardware/scpi-pps/profiles.c
index 6d52b05b..a72c90a2 100644
--- a/src/hardware/scpi-pps/profiles.c
+++ b/src/hardware/scpi-pps/profiles.c
@@ -458,8 +458,11 @@ static const uint32_t hp_6630b_devopts_cg[] = {
 	SR_CONF_CURRENT | SR_CONF_GET,
 	SR_CONF_VOLTAGE_TARGET | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
 	SR_CONF_CURRENT_LIMIT | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
+	SR_CONF_OVER_VOLTAGE_PROTECTION_ACTIVE | SR_CONF_GET,
 	SR_CONF_OVER_VOLTAGE_PROTECTION_THRESHOLD | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
 	SR_CONF_OVER_CURRENT_PROTECTION_ENABLED | SR_CONF_GET | SR_CONF_SET,
+	SR_CONF_OVER_CURRENT_PROTECTION_ACTIVE | SR_CONF_GET,
+	SR_CONF_OVER_TEMPERATURE_PROTECTION_ACTIVE | SR_CONF_GET,
 	SR_CONF_REGULATION | SR_CONF_GET,
 };
 
@@ -519,8 +522,11 @@ static const struct scpi_command hp_6630b_cmd[] = {
 	{ SCPI_CMD_GET_OVER_CURRENT_PROTECTION_ENABLED, ":CURR:PROT:STAT?" },
 	{ SCPI_CMD_SET_OVER_CURRENT_PROTECTION_ENABLE, ":CURR:PROT:STAT 1" },
 	{ SCPI_CMD_SET_OVER_CURRENT_PROTECTION_DISABLE, ":CURR:PROT:STAT 0" },
+	{ SCPI_CMD_GET_OVER_CURRENT_PROTECTION_ACTIVE, "STAT:QUES:COND?" },
+	{ SCPI_CMD_GET_OVER_VOLTAGE_PROTECTION_ACTIVE, "STAT:QUES:COND?" },
 	{ SCPI_CMD_GET_OVER_VOLTAGE_PROTECTION_THRESHOLD, ":VOLT:PROT?" },
 	{ SCPI_CMD_SET_OVER_VOLTAGE_PROTECTION_THRESHOLD, ":VOLT:PROT %.6f" },
+	{ SCPI_CMD_GET_OVER_TEMPERATURE_PROTECTION_ACTIVE, "STAT:QUES:COND?" },
 	{ SCPI_CMD_GET_OUTPUT_REGULATION, "STAT:OPER:COND?" },
 	ALL_ZERO
 };
diff --git a/src/hardware/scpi-pps/protocol.h b/src/hardware/scpi-pps/protocol.h
index 420d5345..3ffe3cb7 100644
--- a/src/hardware/scpi-pps/protocol.h
+++ b/src/hardware/scpi-pps/protocol.h
@@ -53,6 +53,7 @@ enum pps_scpi_cmds {
 	SCPI_CMD_GET_OVER_TEMPERATURE_PROTECTION,
 	SCPI_CMD_SET_OVER_TEMPERATURE_PROTECTION_ENABLE,
 	SCPI_CMD_SET_OVER_TEMPERATURE_PROTECTION_DISABLE,
+	SCPI_CMD_GET_OVER_TEMPERATURE_PROTECTION_ACTIVE,
 	SCPI_CMD_GET_OVER_VOLTAGE_PROTECTION_ENABLED,
 	SCPI_CMD_SET_OVER_VOLTAGE_PROTECTION_ENABLE,
 	SCPI_CMD_SET_OVER_VOLTAGE_PROTECTION_DISABLE,